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

Milk Dud – Residency

6th sighting in Monterey Bay
Fluke of Milk Dud
Milk Dud Confirmed in the catalog @137927
May 18 – Oct 5, 2026 · Monterey Bay

Early Summer Crowd

Green water, good company, and the bait's finally moving — this is my season.

119 m
Deepest dive
5:33
Longest dive
36
Dives
Sightings
3
Days between first and last sighting
140
Deepest dive on record
119 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 18, 2026139 m11.4°C119 m
Jul 31, 202663 m17.3°C57 m
Oct 5, 2026191 m—39 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
May 18, 2026 — seafloor 139 m (measured), deepest dive 119 m (modelled)May 18Jul 31, 2026 — seafloor 63 m (measured), deepest dive 57 m (modelled)Jul 31Oct 5, 2026 — seafloor 191 m (measured), deepest dive 39 m (modelled)Oct 5

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

Dives

119 m
Deepest dive
5:33
Longest dive
36
Dives
30 m
Avg dive depth
3
Sightings
140
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150119 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (139 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 · May 18, 2026

measured
Seafloor depth
139 m
Sea-surface temperature
11.4°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
63 m – 191 m
Sea-surface temperature
11.4°C – 17.3°C
Distance from shore
2.0 km – 4.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 3 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.