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5K Push

  • Apr 10
  • 20 min read

Updated: May 6


Given you lost nearly a week to illness, here's the full protocol from right now through post-swim:

Now — 5:20 AM

Hydration reset first. Your body is still recalibrating electrolyte balance post-illness. Start immediately:

  • 500 ml water with electrolytes (not plain water)

  • If you have coconut water, even better — natural sodium/potassium

  • No coffee yet — it's a diuretic and your kidneys are still catching up

Light movement only. A 15–20 min easy walk this morning helps wake the GI system and gets blood moving without burning glycogen you need for 1 PM.

8:30–9:00 AM — Pre-Swim Meal (Critical)

This is the most important thing you do today. After 5 days of BRAT diet your glycogen stores are significantly depleted. You need a real meal, not a snack.

Option A (preferred):

  • 1 cup dry oatmeal cooked + 1 tbsp honey + banana sliced in

  • 2 scrambled eggs on the side

  • 8 oz electrolyte drink

  • ~580 kcal | ~90g carbs | ~22g protein

Option B:

  • 1.5 cups cooked white rice + 2 eggs + sliced fruit

  • ~520 kcal | ~85g carbs

What NOT to eat: Anything high fat (avocado, bacon, cheese), high fiber (salad, beans), or spicy. Your GI tract just recovered — treat it gently.

10:00–11:30 AM — Rest Window

  • Horizontal rest, not sleep — stay relaxed but alert

  • Sip water steadily: another 300–400 ml by 11:30 AM

  • Lay out your gear: Apple Watch Ultra charged, FORM goggles, 3x gel/salt tabs labeled 55/90/120 min, wetsuit

12:15 PM — 45 Min Pre-Swim Top-Up

  • 1 banana or small energy bar (~100 kcal)

  • 700–900 ml electrolyte drink — sip over 30 min, don't chug

  • Light stretch: hip flexors, shoulder circles, calf raises (left calf especially)

  • No solid food after this point

12:50 PM — Drive/Arrival

  • Sip remaining electrolyte drink on the way

  • Check in with lifeguard on arrival: rip current, shark/whale

  • Watch 2–3 wave sets before entering — time your entry on the lull

  • Do a 3–5 min beach walk to loosen up since you won't have a pool warm-up

In the Water — Feed Protocol

Time

Action

Entry

Easy first 500m — Zone 2, breathing settled, no racing

55 min

🔴 Gel or salt tab — MANDATORY. Stop at a buoy or tread briefly

90 min

🔴 Gel or salt tab

120 min

🔴 Gel or salt tab if still going

Every 15 min

Dorsiflex left foot — pull toes toward shin, hold 5 sec

HR guidance: Post-illness HR runs 5–10 bpm higher than normal. If Apple Watch shows HR above 135 before the 2,500m mark, back off to Zone 2 pace — your heart is working harder than the effort feels. Don't chase the Apr 24 pool pace.

The danger zone is 2,500–3,000m — this is where you slowed on Apr 17 and where electrolytes drop off. The 55 min feed is specifically designed to hit just before this window.

Exit rule: If left leg tightens at any point — exit immediately, walk the beach, re-enter only if fully resolved. Do not negotiate with a cramp in open water post-illness.

Post-Swim — Within 30 Min of Exit

Your recovery window is more important today than any previous session given the illness week.

  • Immediate: 500 ml electrolyte drink — start before you even take off the wetsuit

  • Within 30 min: 30–40g protein + fast carbs

    • Chocolate milk (16 oz) — ideal ratio

    • OR protein shake + banana

    • OR Greek yogurt + honey + fruit

  • No alcohol tonight — liver is still clearing post-illness inflammation

Post-Swim Meal — Within 2 Hours

  • Salmon or chicken + sweet potato + greens

  • ~700–800 kcal, high protein, anti-inflammatory

  • Magnesium 300mg tonight — resume the nightly protocol

  • Target 8+ hrs sleep — your biggest recovery tool right now

One Mindset Note

You've been sick for 5 days, came off a choppy abort on Apr 22, and still haven't had a clean 5K OW attempt. Today's water is open, conditions are manageable, and your pool data from Apr 24 shows the engine is strong. The only variable is pacing conservatively enough in the first half to have fuel for the back half.

Start slower than you think you need to. The 5K will come to you.

Send the FORM .xlsx after and I'll do the full analysis.



Session 16 — Pool | 3,225m | 71:15 swim time | 2:12/100m

This is the most important data point of the entire training block. Clean pool numbers with zero OW variables. Here's what it tells you:

The aerobic engine is strong. 59% Zone 3 across 3,225m with only avg HR 109 — you're working efficiently without blowing up. Max HR only hit 122 across the whole session. That's very controlled for nearly 2 hours of work.

Pace is faster than expected. 2:12/100m pure swim pace in a structured interval session — that's well ahead of your 4,692m OW PR pace of 2:34. Even applying a 12–18% OW penalty for chop and navigation, your projected 5K OW pace is 2:28–2:36/100m, which is faster than any previous OW effort of that distance.

The 1:39 negative split confirms pacing discipline. You didn't go out too hard and fall apart — second half was faster. That's exactly what a 5K OW swim needs


5K OW Projection

Metric

Pool (Apr 24)

OW Projection

Pace

2:12/100m

2:28–2:40/100m

5K time

~1:50 (extrapolated)

~2:04–2:13

HR target

115–130 bpm

Calendar Events Added

  • Sun Apr 26, 10:00 AM — 2K Group Swim, Moonlight Beach

  • Tue Apr 28, 9:30 AM — Pre-swim nutrition prep

  • Tue Apr 28, 12:00 PM — First 5K Push, La Jolla Shores

Critical for Tuesday: FM-080 bacteria advisory has been running since April 14. Message me Tuesday morning and I'll pull a live status check — the 5K doesn't happen if FM-080 isn't green. Send the Sunday FORM .xlsx after Moonlight and I'll do the analysis.


Why Pool Soreness Hits Harder

1. Flip turns — repeated explosive hip flexor and quad loadingEvery wall turn is a fast tuck, push, and streamline. Over 18 sets and dozens of turns, your hip flexors, quads, and core absorb impact that simply doesn't exist in open water. You did zero turns in any OW session.

2. Lane swimming locks you into one plane of motionIn the ocean you constantly micro-adjust — rotating, sighting, navigating around swells. That constant variation distributes load across muscles evenly. A pool lane forces identical repetitive mechanics on every stroke, every lap. Same muscles, same angle, hundreds of times. That's the definition of overuse soreness.

3. Interval structure spikes intensityYour 18-set pool session hit 59% Zone 3. Your OW sessions — even the 4,692m PR — run mostly Zone 2. Higher intensity intervals recruit fast-twitch muscle fibers that aren't used much in steady OW swimming. Those fibers produce more DOMS (delayed onset muscle soreness).

4. No buoyancy assist from salt waterThe Pacific at La Jolla Shores is saltwater — meaningfully more buoyant than a freshwater pool. Your body sits higher, your hips ride up, and your lower back and core work less to maintain position. In a pool you're fighting slightly more to keep your hips up, especially at 291 lbs. Over 3,225m that adds up to real muscular fatigue in your lower back, obliques, and glutes.

5. KickingPool drills and interval sets typically involve more deliberate kicking, especially off walls. OW swimming at your pace is mostly a 2-beat kick — minimal leg drive. More kick = more quad and calf recruitment = more soreness.

What to Do Today

You're 16 hours post-swim and likely hitting peak DOMS right now. Tomorrow's Moonlight group swim will actually help — easy OW movement flushes the lactic acid and loosens the hip flexors better than rest alone.

  • Today: Walk 20–30 min, light stretching (hip flexors, thoracic spine, calves). No intensity.

  • Tonight: Magnesium 300mg, high protein dinner, extra hydration.

  • Sunday: The 2K group swim will feel better midway through than it does getting in — that's normal after pool soreness.


The Case for Year-Round Pool Work

Your Apr 24 pool session revealed things 16 OW sessions couldn't. Clean HR data across every interval, true pace without chop or navigation variables, and a confirmed aerobic baseline of 2:12/100m. That's coaching gold. You'd have been guessing at that number all season without it.

OW alone has a ceiling. Open water builds navigation skill, mental toughness, and salt water endurance — but it can't isolate weaknesses the way a pool can. If your stroke has a flaw, OW conditions hide it. A pool exposes it immediately through pace inconsistency across laps.

Day

Session

Why

Monday

OW long endurance

Build OW-specific distance and mental base

Tuesday

Dryland — strength/core

Shoulder prehab, hip flexors

Wednesday

Pool — tempo/intervals

Pace work, stroke refinement, clean HR data

Thursday

Dryland — mobility

Recovery

Friday

OW — technique/speed

Apply pool gains to open water

Saturday

Rest or optional OW


Sunday

OW group swim or rest


One pool session per week on Wednesday replaces the OW tempo day. You get the same aerobic stimulus without bacteria advisories, shark concerns, or chop cancellations.

Specific Pool Work That Transfers Directly to Your 10K

Negative split sets — 4×500m building pace each rep. Teaches the pacing discipline you've already shown in OW (your negative splits on Sessions 12, 14, 16 all confirm this is a natural strength — reinforce it).

Long continuous swims — 1×2,000m or 1×3,000m at 10K target effort. Simulates the mental grind of the back half of a long OW swim without the variables.

Pull buoy sets — removes the kick entirely, isolates your catch and pull. At your size and with your 2-beat OW kick, your upper body is doing ~85% of the propulsion. A pull buoy session once a week directly trains your primary engine.

Descending pace sets — 10×100m each one slightly faster. Teaches you to know what 2:35/100m feels like vs. 2:50 — critical for pacing a 5K or eventual 10K in OW where you have no lane lines or clocks.

Practical Upside Beyond Fitness

  • No bacteria advisory can block a pool session. FM-080 just cost you your Apr 22 and nearly your Apr 24 5K attempt. One pool day per week means one guaranteed training day regardless of conditions.

  • Soreness will decrease fast. The first pool session after a long OW block always hurts most. By your third or fourth Wednesday pool session the DOMS drops significantly as your body adapts to the flip turns and interval loading.

  • Better data every week. Each pool session gives you a clean pace benchmark that tells you exactly how your fitness is trending — something OW pace can't do reliably because conditions vary too much session to session.

One Caution

Don't let pool sessions replace your long OW swims. The 4K+ efforts in open water — navigating, feeding mid-swim, managing chop, dealing with the mental weight of distance — those can only be trained in the ocean. Pool sharpens the engine. OW teaches you how to use it.

The formula: pool on Wednesdays, long OW on Mondays, everything else stays the same.


🚫 DO NOT SWIM TODAY — ADVISORY IN EFFECT

This is a hard stop. La Jolla Shores FM-080 is under an active bacteria advisory since April 14, 2026 — 10 days running. The advisory language is explicit: "Bacteria levels exceed health standards. Avoid water contact in the advisory area." This is your #1 safety rule and it overrides everything else today.

Full Conditions Picture for 3 PM

Factor

Status

Verdict

Factor

Status

Verdict

Water quality FM-080

⚠️ Bacteria advisory since Apr 14

🚫 No swim

Surf at 3 PM

2–3 ft choppy, WSW 10–11 mph wind

Borderline even without advisory

Shark activity

CBS8 Apr 20: sharks moving up from Baja, marine heat wave pulling pupping season earlier

Elevated risk

Rain in last 72 hrs

None confirmed

OK

Even if the advisory weren't active, 2–3 ft choppy with 10–11 mph onshore wind is the same condition profile that cut Wednesday's swim short. Today would likely be a repeat of Apr 22.

What to Do Instead

Option 1 — Pool session today. Get your aerobic work in safely. A 3,000–4,000m pool set keeps the block moving without the water quality risk.

Option 2 — Wait for the weekend. Check sdbeachinfo.com FM-080 again Saturday morning. The advisory has been running 10 days — it may lift if the county re-samples and bacteria levels drop. Surf also looks calmer Saturday (1–2 ft fair at 6am per the forecast).


Session 15 — 5K 1st attempt La Jolla Shores | 1,802m | 49:38 | 2:45/100m


▼ 2:06 negative split — stronger second half despite chop

"Super choppy conditions — smart decision to exit and live to swim another day. Underfueled (1 toast + banana = insufficient pre-swim fuel for open water). 79% Zone 2 — aerobic base solid. HR only 10% dropout (Apple Watch). Good decision-making under adverse conditions."


Calling the exit early was absolutely the right call. Getting out of gnarly chop when you're underfueled is not a failure — it's exactly what experienced ocean swimmers do. The data backs up the decision:

What the data shows:

  • First two splits at 2:48 and 2:52/100m — you were working hard just to hold position against the chop, not swimming efficiently

  • HR stayed 79% Zone 2 — your engine was fine, the ocean was the problem

  • Still pulled a 2:06 negative split, which means your fitness held up even in bad conditions

  • 10% HR dropout (Apple Watch) — cleanest HR data of any OW session so far

Go Condition

Session Structure

500mEasy warm-up (Zone 2)

2,000mBuild to 10K pace (2:50–3:00)

2,000mHold 10K pace — feed at 55 & 90 min

500mStrong finish — feed at 120 min if needed

Lesson from Apr 22: 1 toast + banana is NOT enough — underfueled in chop. Required pre-swim meal: 400–500 kcal carb-forward meal 2.5–3 hrs before (oatmeal + protein, or rice + eggs). Banana + 700–900 ml electrolyte drink 45 min before. Mid-swim feeds MANDATORY: gel/salt tab at 55 min, 90 min, 120 min. Apple Watch Ultra for HR. Check sdbeachinfo.com FM-080 + surf forecast — abort if surf >2 ft or choppy.


Session 14 — Moonlight Beach Group Swim

Apr 19 | 2,097m | 48:42 | 2:19/100m avg

Split

Time

Pace

0–500m

12:13

2:27/100m

500–1000m ⚠

13:55

2:47/100m

1000–1500m

9:50

1:58/100m

1500–2000m

10:34

2:07/100m

2000–2097m

2:10

2:14/100m

Half splits: First half 26:57 / Second half 21:45 → 5:12 negative splitHR: Avg 114 / Max 122 | SR: 47 spm — highest of the entire training block

Coaching Analysis

The 500–1000m slowdown is completely explainable. No warm-up + big surf + group navigation all hit at once in that segment. Once you cleared the chaos and found your rhythm at 1,000m, you were locked in at sub-2:00/100m pace for the next kilometer — that's genuinely fast for a recovery day.

SR 47 spm is notable. That's your highest cadence of the whole block. Groups tend to pull your turnover up organically — something to be aware of Wednesday if you go out too hot trying to match that feeling.

The 5:12 negative split on a chaotic entry day is a great sign. You didn't panic, you settled, and you finished stronger than you started. That's exactly the mental pattern you need at 3,000m into a 5K.

Wednesday April 22 — First 5K Push

4 calendar events added:

  • 9:00 AM — Pre-swim nutrition prep

  • 1:00 PM — First 5K Push at La Jolla Shores (with full feed protocol)

  • 3:30 PM — Post-5K recovery nutrition

  • Thu Apr 23 9:00 AM — Mobility & shoulder prehab dryland

Key reminders for Wednesday:

  • Apple Watch Ultra on, not FORM goggles, for HR

  • Feeds at 55 min, 90 min, 120 min — no exceptions

  • Start at 2:50–3:00/100m. The goal is completion, not pace

  • Check sdbeachinfo.com (FM-080) before you leave the house

Send the FORM .xlsx after and I'll do the full analysis.


Session 13 — April 17 — Logged


🏆 MILESTONE: First successful mid-swim feed at 60 min — zero cramps through full 120:30 (breakthrough after Apr 10 cramp at 111 min). Electrolyte protocol confirmed effective


Massive PR — 4,692m! And that avg HR of 99.5 with max 112 tells a very important story. Let me check those HR zeros — looks like the FORM HR sensor may have dropped signal for chunks of the swim. Let me verify and then update everything.


Key findings — 88% HR dropout from the FORM goggles (common in longer open water sessions), and that 2500–3000m slow segment at 3:21/100m at the 60-min mark is very interesting. Now let me update the tracker and build the full plan.


That's a huge milestone! First successful mid-swim feed at 60 min, and zero cramps on a 4,692m effort — that's the protocol working exactly as designed.


A few things to note from today's session:

What worked

  • Feed at 60 min hit right before the 2,500–3,000m slow patch you identified — that timing is dialed in, keep it there

  • Cramp-free through 120+ min after the Apr 10 incident at ~111 min — the combination of pre-loading + mid-swim gel/salt tab is clearly effective

  • Recovery feed at the end supports muscle glycogen repletion for Sunday's group swim

Protocol confirmation for Wednesday's 5KSince 5K will push past 130–140 min at your current pace, you'll need three feeds:

  • 55 min — gel or salt tab (pre-danger zone)

  • 90 min — gel or salt tab

  • 120 min — mandatory third feed if continuing to 5K

Today proved the system works. Wednesday just extends it one more interval.

One thing to watch SundayMoonlight Beach group swim — you'll likely feel fresher than the group expects. Stick to your plan: treat the first 500m as warm-up and don't race. It's a recovery effort before Wednesday's big push.

Ready for Wednesday. Send the FORM .xlsx after the 5K and I'll do the full update.

Did you update the app tracker?

Yes — the tracker was fully updated earlier today as part of the Session 13 workflow:

  • Session 13 added: 4,692m, Apr 17, La Jolla Shores, 2:00:30, 2:34/100m

  • Progress ring: 46.9% (4,692m / 10,000m)

  • Total distance: 38.58 km across 13 sessions

  • PR card: 4,692m — Apr 17, 2026

  • Next swim plan: Sunday Apr 19, 2K Group Swim, Moonlight Beach


Session 12 — April 13 — Logged

Metric

Value

Signal

Distance

1,714m

Shorter session, high quality

Duration

40:45

Avg Pace

2:22/100m

Fastest of the entire block

Avg HR

113 bpm

Ultra-efficient

Max HR

145 bpm

Brief spike, not sustained

Avg SR

41 spm

Clean

Negative Split

5.7 min

Strongest of the block

HR Zone 2

74%

Textbook aerobic session

Cramps

None

Left leg 100% clear

All-time total: 33.89 km across 12 sessions

What the data tells you: This was your best aerobic session of the block. 2:22/100m average with only 113 avg HR means your aerobic engine is firing efficiently — you're swimming faster while working less hard. The splits tell the whole story: 3:01 first 500m, then 2:12, 2:05, 1:56 — a textbook progressive build. That kind of pace ladder at Zone 2 HR is exactly what you want heading into a 4K+ attempt.

Tuesday Dryland Plan — Full Detail

4 events on calendar. Here's the complete Tuesday blueprint:

Goal: Prime shoulders and calves for Wednesday. No fatigue.

Warm-Up (5 min)

Arm swings, hip circles, cat-cow, thoracic rotation

Shoulder Prehab — 3 rounds

Band pull-aparts → External rotation → YTWL prone raises → Face pulls → Scapular wall slides | 45 sec rest between rounds

Calf & Cramp Prevention (critical)

  • Calf raises 3×20 (slow, full range of motion)

  • Single-leg balance 30 sec each

  • Tibialis anterior stretch 45 sec each

  • Seated ankle circles 20 each direction

  • Foam roll calves: 90 sec each leg, slow deliberate passes

Full Mobility — 45–60 sec holds each

Thoracic foam roll → Thread-the-needle → Hip 90/90 → Pigeon pose → Ankle dorsiflexion → Lat stretch

Core Stability — 2 rounds

Dead bug → Bird dog → Side plank → Glute bridge hold

Magnesium 300mg tonight before bed — non-negotiable for Wednesday.

Wednesday 4K+ PR Attempt Plan

The one coaching rule for Wednesday: do NOT go out at 2:22 like today. Start at 3:05–3:15 for the first 500m no matter how good you feel. Monday's 2:22 avg pace was only sustainable for 40 minutes. Wednesday needs 100+ minutes.

Phase

Distance

Pace

HR

SR

Warm-up

500m

3:05–3:15

<115

36–38

Main build

500–3,500m

2:55–3:00

110–125

38–40

Push

3,500–4,000m

2:45–2:50

up to 130

40–42

Extension

4,000–4,200m

If HR<130 + feeling strong

Cool-down

200m

Easy

Electrolyte protocol (mandatory): gel or salt tab at 60 min AND 90 min — tucked in wetsuit or handed from shore. Dorsiflex left foot every 15 min.

Pre-swim checklist: confirm La Jolla Shores is open on sdbeachinfo.com, ask lifeguard about shark/whale activity, surf <4 ft.

Success looks like: 4,000m+ clean, no cramp, negative split, avg HR under 125. Hit all four and you're ready to plan the first 5K session.


Session 11 — Recovery Swim ✓

Metric

Value

vs Target

Distance

2,103m

✓ (target 2,500–3,000m)

Duration

54:29

Avg Pace

2:35/100m

⚠️ Faster than 3:00 target

Avg HR

126 bpm

⚠️ Above 105–120 target

Max HR

147 bpm

High for recovery

Avg SR

44 spm

⚠️ Above 34–38 target

Cramps

None

✅ Left leg clear

All-time total: 32.17 km across 11 sessions

Tactical Analysis

The good news first: Left leg was completely clean — the cramp protocol worked. That's the most important data point from today.

What the data reveals: You swam this as a moderate effort, not a true recovery swim. Pace came in at 2:35/100m (25 seconds faster than the 3:00 target), avg HR hit Zone 3 for 45% of the swim, and SR averaged 44 spm against a 34–38 target. The 0–500m split was your fastest at 2:24 — you went out hard from the start.

This isn't alarming — 54 min at moderate effort with clean mechanics is fine two days after a PR. But for true recovery, the body needs Zone 1–2 to flush lactate, not Zone 3 to accumulate it. Something to watch on Wednesday: if you go out fast like this on a 4K+ session, you'll hit the same wall at the 90–100 min mark that set up the Apr 10 cramp.

The SR signal: 44 spm avg with max at 62 spm is your fastest stroke rate in the log. At this higher turnover your distance per stroke likely dropped. For endurance building, longer strokes at 37–40 spm are more economical over 4K+.

Half split: +0.7 min positive — normal for a recovery day, nothing concerning.

Week Ahead — 5 Events on Calendar

  • Today 12:00 PM — Post-swim recovery nutrition + magnesium

  • Mon Apr 13, 1:00 PM — Dryland: Strength & Core + calf raises (cramp prevention)

  • Tue Apr 14, 1:00 PM — Dryland: Mobility & Shoulder Prehab

  • Wed Apr 15, 10:00 AM — Pre-swim meal & electrolyte loading

  • Wed Apr 15, 1:00 PM — Big Swim: 4,000–4,200m at La Jolla Shores

Wednesday is the key session. The target is a clean 4K+ with the mid-swim electrolyte protocol (salt tab or gel at 60 min and 90 min). Patient start at 2:55–3:00/100m, SR 38–40, then let the second half open up. If you execute that negative split and don't cramp, you're ready to push toward 5K.

10K Ocean Swim Tracker

Open 10K Ocean Swim Tracker

Revise swim assessment based on yesterday swim location at Moonlight beach and update app accordingly. Project today's swim recommendation at La Jolla shore Kellog beach and confirm a rumour that there is a dead whale that might attract shark

I have the search results. Let me now get more specific and current information about the whale/shark situation near Encinitas/Moonlight Beach and La Jolla right now.

I now have enough information for a solid assessment. Let me also quickly update the tracker app with the corrected Moonlight Beach location, then deliver the full report.

10K Ocean Swim TrackerApp

Tracker Updated — Session 11 Corrected

Session 11 now shows Moonlight Beach, Encinitas as the location. Good catch.


Revised Session 11 Assessment: Moonlight Beach Context

Moonlight Beach (Encinitas) is about 12 miles north of La Jolla Shores and meaningfully different in character — more exposed, no submarine canyon effect, slightly bigger baseline surf, and less protected than the Shores cove setup. Swiming 2,103m at 2:35/100m there with a max HR of 147 and SR of 44 spm suggests you were working against more chop or current than a typical La Jolla Shores session. The "too fast" pace we flagged yesterday actually makes more sense now — you may have been compensating for conditions rather than purely over-efforting.

Dead Whale + Shark Situation — Confirmed Risk

The rumor has substance. Here's what the current data shows:

Great white shark activity is at an all-time high in Southern California in 2026. Documented reports:

  • NBC4 (March 27, 2026): SoCal shark sightings hit all-time high — a 10-foot great white was spotted 100 yards offshore, juvenile whites are showing up a month earlier than normal due to warmer water

  • Mission Beach (April 1, 2026): 16–18 foot great white spotted off Mission Beach — just 5 miles from La Jolla

  • Hermosa Beach (April 3, 2026): 7-foot juvenile great white caught and released at a pier

  • Newport Beach closures also reported in the same period

Regarding a specific dead whale near Moonlight Beach / La Jolla: I found no confirmed report of a whale carcass at either Moonlight Beach or La Jolla specifically right now in April 2026. The most recent whale news is from April 2025 (Huntington Beach). However:

  • An Encinitas Facebook post from September 2025 documented a surfer encountering a dead whale at Encinitas, with experts explicitly noting "dead whales are notorious for attracting hungry sharks of all species"

  • The April 7, 2026 Instagram post flagging great white activity near Mission Beach/La Jolla Shores has 66K likes — this is a current, viral, real concern

Bottom line on the rumor: No confirmed active whale carcass today at Moonlight or La Jolla, but the surrounding shark activity level in San Diego waters is genuinely elevated right now. The rumor is plausible and the underlying risk is real regardless of whether a specific carcass is present.

Today's La Jolla Shores / Kellogg Beach Recommendation

My recommendation: SWIM WITH CAUTION — conditions are manageable but shark vigilance is required.

Factor

Status

Water quality

No active advisory — last Moonlight Beach advisory was lifted March 26

Bacteria (La Jolla Shores)

Check sdbeachinfo.com before entry — likely open

Surf (April morning)

Typically 2–3 ft at La Jolla Shores, manageable

Water temp

~61–63°F — full wetsuit recommended

Great white activity

ELEVATED — multiple confirmed sightings within 5 miles, unusual juvenile activity

Dead whale carcass

Not confirmed at La Jolla specifically — verify on-site with lifeguards

If you swim today, apply these extra protocols:

  1. Ask the lifeguard on duty first — they will know if there's any whale or unusual shark activity in the area

  2. Stay within the flagged swim zone, parallel to shore — do not swim toward the Scripps Pier end where the canyon drop-off is (great whites use it)

  3. Avoid dawn/dusk — most active feeding windows; stick to mid-morning (after 9 AM)

  4. Exit immediately if you see baitfish balls breaking the surface or birds diving — that's a feeding aggregation

  5. Keep your Wednesday 4K+ session at La Jolla Shores as planned, but verify conditions morning-of

Given your conservative, safety-first approach and the fact that shark sightings are genuinely elevated this season in San Diego — if there's any active report


from the lifeguard of nearby shark or whale activity, take that dryland day instead. No swim is worth that risk.


Session 10 — NEW DISTANCE PR: 4,060m

Another PR — 100m beyond Monday's 3,960m. And you finished it despite the cramp. That's mental toughness.

Metric

Value

Distance

4,060m (NEW PR)

Duration

1:55:06

Avg Pace

2:50/100m

Avg HR

113 bpm (lowest ever — great aerobic efficiency)

Max HR

129 bpm

Avg SR

39 spm

All-Time Total

30.07 km across 10 sessions

Cramp Tactical Analysis

The FORM data tells the exact story:

What happened at 111:36 (3,945m): Distance flatlined for 90 seconds — that's you on land. SR dropped to 28 spm right before the stop, which is the cramp forcing you to fight your stroke. You re-entered at 113:06 and hit 44 spm immediately — strong, controlled return.

Root cause: Electrolyte depletion. At 1h50+ at the effort level you were holding, sodium, potassium, and magnesium get depleted. Your avg HR of 113 bpm was actually very controlled — this wasn't fatigue, it was a pure electrolyte deficit. Two sessions in a row beyond 3,900m has compounded the depletion.

The splits also show a slight positive split (56:51 first half, 58:15 second) — the cramp and the slight fade in the final 30 min are connected. Your 3,000–3,500m split at 2:45/100m was your fastest of the day, which shows you had gas in the tank before the cramp hit.

What to do immediately:

  • Tonight: Magnesium glycinate 300mg + salty food + 24 oz water before bed

  • Tomorrow and Sunday: Double your electrolyte intake throughout the day

For swims beyond 90 min going forward: You now need an electrolyte protocol mid-swim — a gel or salt tab tucked in your suit, taken at the 60-min and 90-min marks. This becomes non-negotiable as you build toward 5K+ sessions.

Calendar — 5 Events Added

  • Tonight 8:00 PM — Cramp recovery nutrition (magnesium, potassium, sodium)

  • Sat Apr 11, 10:00 AM — Dryland: Mobility & Calf Focus (foam roll calves, hip/glute mobility)

  • Sun Apr 12, 11:00 AM — Pre-swim meal & electrolyte loading

  • Sun Apr 12, 1:00 PM — Recovery Swim: 2,500–3,000m Easy at La Jolla Shores (Zone 1–2 only, cramp protocol included)

  • Sun Apr 12, 3:00 PM — Post-swim recovery nutrition

Sunday is pure flush and feel-good — no pace targets, no building. Your job is to confirm the left calf is clean and log some easy kilometers. If it tightens at any point, exit immediately.

10K Ocean Swim Tracker

Currently open

Analyze update app and project nutrition dry land and next swim

0412-copy.xlsx

Good data. Now let me update the tracker and calendar simultaneously.


Session 9 Logged — NEW DISTANCE PR

3,960m in 1:44:15 at La Jolla Shores — that's a 710m PR jump over your previous best (3,250m on Mar 18). You're now at 39.6% of the 10K goal.

Metric

Value

Avg Pace

2:51/100m

Avg HR

123 bpm

Max HR

149 bpm

Avg SR

40 spm

Negative Split

15.2 min (first half 59:44, second half 44:31)

All-Time Total

26.01 km across 9 sessions

That 15-minute negative split is outstanding — textbook endurance pacing. Second half pace dropped significantly while HR stayed controlled.

Tracker Rebuilt and Deployed

Your new tracker is live above with all 9 sessions, distance progression chart, HR trends, 500m splits for today's session, and the next swim plan. Bookmark this URL — going forward, send me your FORM .xlsx here and I'll update it in place.

Calendar Updated — 6 Events Added

  • Tue Apr 7, 1:00 PM — Dryland: Strength and Core (50 min)

  • Wed Apr 8, 10:00 AM — Pre-Swim Meal (carb-forward, 400-450 kcal)

  • Wed Apr 8, 11:45 AM — Carb Top-Up + Electrolytes

  • Wed Apr 8, 1:00 PM — Swim: 3,500m Tempo/10K Pace at La Jolla Shores

  • Wed Apr 8, 3:00 PM — Post-Swim Recovery Nutrition

  • Thu Apr 9, 1:00 PM — Dryland: Mobility and Shoulder Prehab

Wednesday's target is 3,500m at tempo pace (2:45-2:55/100m). After tonight's PR, a slight step-back on distance with faster pace work is the right move — consolidate the endurance gains while sharpening 10K race pace.


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