Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Glacier Bay & Icy Strait

Caldera – Residency

6th sighting in Glacier Bay & Icy Strait
Fluke of Caldera
Caldera Confirmed in the catalog @6144
Sep 9 – 17, 2026 · Glacier Bay & Icy Strait

Green Water, Old Ground

Two more passes through Icy Strait, still hearing that gravel hum.

67 m
Deepest dive
3:56
Longest dive
22
Dives
Sightings
2
Days between first and last sighting
8

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 9, 202684 m13.8°C61 m
Sep 17, 202690 m—67 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 9, 2026 — seafloor 84 m (measured), deepest dive 61 m (modelled)Sep 9Sep 17, 2026 — seafloor 90 m (measured), deepest dive 67 m (modelled)Sep 17

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

Dives

67 m
Deepest dive
3:56
Longest dive
22
Dives
24 m
Avg dive depth
2
Sightings
8
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010067 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (90 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 17, 2026

measured
Seafloor depth
90 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 2 sightings

measured
Seafloor depth
84 m – 90 m
Sea-surface temperature
13.8°C
Distance from shore
1.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 2 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.