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Monterey Bay

HW-MN0503897 – Residency

18th sighting in Monterey Bay
Fluke of HW-MN0503897
HW-MN0503897 Confirmed in the catalog @144229
Jul 18 – Oct 13, 2026 · Monterey Bay

Same Bay, Same Ledge

Cold water rises, I stay, they keep finding me here.

155 m
Deepest dive
5:55
Longest dive
216
Dives
Sightings
16
Days between first and last sighting
87
Deepest dive on record
155 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 18, 202667 m15.4°C48 m
Jul 19, 202661 m15.8°C47 m
Aug 14, 2026525 m16.6°C155 m
Aug 25, 2026107 m16.6°C74 m
Aug 31, 2026193 m15.3°C55 m
Sep 2, 202682 m15.3°C72 m
Sep 3, 202675 m15.3°C53 m
Sep 6, 2026227 m15.8°C45 m
Sep 25, 2026254 m—152 m
Sep 25, 2026143 m—32 m
Sep 26, 2026265 m—40 m
Sep 27, 2026254 m—37 m
Sep 29, 2026140 m—78 m
Oct 4, 2026567 m—139 m
Oct 5, 2026204 m—47 m
Oct 13, 2026153 m—107 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Jul 18, 2026 — seafloor 67 m (measured), deepest dive 48 m (modelled)Jul 18Jul 19, 2026 — seafloor 61 m (measured), deepest dive 47 m (modelled)Aug 14, 2026 — seafloor 525 m (measured), deepest dive 155 m (modelled)Aug 25, 2026 — seafloor 107 m (measured), deepest dive 74 m (modelled)Aug 25Aug 31, 2026 — seafloor 193 m (measured), deepest dive 55 m (modelled)Sep 2, 2026 — seafloor 82 m (measured), deepest dive 72 m (modelled)Sep 3, 2026 — seafloor 75 m (measured), deepest dive 53 m (modelled)Sep 3Sep 6, 2026 — seafloor 227 m (measured), deepest dive 45 m (modelled)Sep 25, 2026 — seafloor 254 m (measured), deepest dive 152 m (modelled)Sep 25, 2026 — seafloor 143 m (measured), deepest dive 32 m (modelled)Sep 25Sep 26, 2026 — seafloor 265 m (measured), deepest dive 40 m (modelled)Sep 27, 2026 — seafloor 254 m (measured), deepest dive 37 m (modelled)Sep 29, 2026 — seafloor 140 m (measured), deepest dive 78 m (modelled)Sep 29Oct 4, 2026 — seafloor 567 m (measured), deepest dive 139 m (modelled)Oct 5, 2026 — seafloor 204 m (measured), deepest dive 47 m (modelled)Oct 13, 2026 — seafloor 153 m (measured), deepest dive 107 m (modelled)Oct 13

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

155 m
Deepest dive
5:55
Longest dive
216
Dives
26 m
Avg dive depth
16
Sightings
87
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200155 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (525 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Aug 14, 2026

measured
Seafloor depth
525 m
Sea-surface temperature
16.6°C
Distance from shore
8.0 km

Across the residency · 16 sightings

measured
Seafloor depth
61 m – 567 m
Sea-surface temperature
15.3°C – 16.6°C
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 16 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.