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

Willy II – Residency

46th sighting in Monterey Bay
Fluke of Willy II
Willy II Confirmed in the catalog @4627
Aug 4 – Sep 16, 2023 · Monterey Bay

Back to the Bay

Another summer in my favorite dining room, where the krill never disappoints.

77 m
Deepest dive
3:26
Longest dive
54
Dives
Sightings
5
Days between first and last sighting
43

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 4, 2023106 m13.9°C53 m
Aug 5, 202397 m14.2°C77 m
Aug 12, 202378 m15.0°C62 m
Aug 13, 2023117 m15.1°C28 m
Sep 16, 202398 m15.8°C54 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 4, 2023 — seafloor 106 m (measured), deepest dive 53 m (modelled)Aug 4Aug 5, 2023 — seafloor 97 m (measured), deepest dive 77 m (modelled)Aug 5Aug 12, 2023 — seafloor 78 m (measured), deepest dive 62 m (modelled)Aug 12Aug 13, 2023 — seafloor 117 m (measured), deepest dive 28 m (modelled)Aug 13Sep 16, 2023 — seafloor 98 m (measured), deepest dive 54 m (modelled)Sep 16

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

Dives

77 m
Deepest dive
3:26
Longest dive
54
Dives
21 m
Avg dive depth
5
Sightings
43
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010077 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (97 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 5, 2023

measured
Seafloor depth
97 m
Sea-surface temperature
14.2°C
Distance from shore
11.0 km

Across the residency · 5 sightings

measured
Seafloor depth
78 m – 117 m
Sea-surface temperature
13.9°C – 15.8°C
Distance from shore
9.0 km – 37.0 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 5 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.