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

Cerulean – Residency

13th sighting in Salish Sea
Fluke of Cerulean
Cerulean Confirmed in the catalog @80344
Jun 20 – Sep 14, 2026 · Salish Sea

Grey Channels, Green Water

Whole summer parked in my favorite feeding grounds, never alone out here.

105 m
Deepest dive
4:24
Longest dive
38
Dives
Sightings
3
Days between first and last sighting
86

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 20, 2026175 m17.2°C105 m
Sep 5, 202634 m—28 m
Sep 14, 2026132 m—99 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
Jun 20, 2026 — seafloor 175 m (measured), deepest dive 105 m (modelled)Jun 20Sep 5, 2026 — seafloor 34 m (measured), deepest dive 28 m (modelled)Sep 5Sep 14, 2026 — seafloor 132 m (measured), deepest dive 99 m (modelled)Sep 14

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

Dives

105 m
Deepest dive
4:24
Longest dive
38
Dives
33 m
Avg dive depth
3
Sightings
86
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150105 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (175 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 · Jun 20, 2026

measured
Seafloor depth
175 m
Sea-surface temperature
17.2°C
Distance from shore
8.0 km

Across the residency · 3 sightings

measured
Seafloor depth
34 m – 175 m
Sea-surface temperature
17.2°C
Distance from shore
1.0 km – 8.0 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 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.