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

Cantus – Residency

81st sighting in Monterey Bay
Fluke of Cantus
Cantus Confirmed in the catalog @14931
Sep 23 – Oct 7, 2026 · Monterey Bay

Bay Full of Company

September thick with feed and friends — this shelf never gets old.

305 m
Deepest dive
12:28
Longest dive
49
Dives
Sightings
7
Days between first and last sighting
14
Deepest dive on record
305 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 23, 2026123 m17.0°C96 m
Sep 25, 202656 m16.5°C34 m
Sep 27, 2026215 m16.6°C57 m
Sep 28, 202671 m16.7°C50 m
Oct 2, 2026248 m17.9°C75 m
Oct 5, 2026287 m17.8°C114 m
Oct 7, 2026384 m18.3°C305 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
Sep 23, 2026 — seafloor 123 m (measured), deepest dive 96 m (modelled)Sep 23Sep 25, 2026 — seafloor 56 m (measured), deepest dive 34 m (modelled)Sep 25Sep 27, 2026 — seafloor 215 m (measured), deepest dive 57 m (modelled)Sep 27Sep 28, 2026 — seafloor 71 m (measured), deepest dive 50 m (modelled)Sep 28Oct 2, 2026 — seafloor 248 m (measured), deepest dive 75 m (modelled)Oct 2Oct 5, 2026 — seafloor 287 m (measured), deepest dive 114 m (modelled)Oct 5Oct 7, 2026 — seafloor 384 m (measured), deepest dive 305 m (modelled)Oct 7

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

Dives

305 m
Deepest dive
12:28
Longest dive
49
Dives
34 m
Avg dive depth
7
Sightings
14
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0175350305 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (384 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 · Oct 7, 2026

measured
Seafloor depth
384 m
Sea-surface temperature
18.3°C
Distance from shore
7.0 km

Across the residency · 7 sightings

measured
Seafloor depth
56 m – 384 m
Sea-surface temperature
16.5°C – 18.3°C
Distance from shore
4.0 km – 7.0 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 7 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.