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

Slice – Residency

86th sighting in Monterey Bay
Fluke of Slice
Slice Confirmed in the catalog @23
Aug 31 – Oct 8, 2025 · Monterey Bay

September Sanctuary

The bay welcomes me back again, my scarred fin catching sunlight through familiar waters.

112 m
Deepest dive
3:40
Longest dive
47
Dives
Sightings
6
Days between first and last sighting
38

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 31, 2025567 m16.3°C11 m
Sep 27, 2025461 m17.3°C99 m
Sep 28, 202580 m17.1°C67 m
Sep 29, 2025567 m17.3°C112 m
Oct 2, 202579 m17.4°C33 m
Oct 8, 202596 m17.1°C29 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
Aug 31, 2025 — seafloor 567 m (measured), deepest dive 11 m (modelled)Aug 31Sep 27, 2025 — seafloor 461 m (measured), deepest dive 99 m (modelled)Sep 27Sep 28, 2025 — seafloor 80 m (measured), deepest dive 67 m (modelled)Sep 28Sep 29, 2025 — seafloor 567 m (measured), deepest dive 112 m (modelled)Sep 29Oct 2, 2025 — seafloor 79 m (measured), deepest dive 33 m (modelled)Oct 2Oct 8, 2025 — seafloor 96 m (measured), deepest dive 29 m (modelled)Oct 8

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

Dives

112 m
Deepest dive
3:40
Longest dive
47
Dives
25 m
Avg dive depth
6
Sightings
38
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150112 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (567 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 · Sep 29, 2025

measured
Seafloor depth
567 m
Sea-surface temperature
17.3°C
Distance from shore
16.0 km

Across the residency · 6 sightings

measured
Seafloor depth
79 m – 567 m
Sea-surface temperature
16.3°C – 17.4°C
Distance from shore
6.0 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 6 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.