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Glacier Bay & Icy Strait

Bullethole – Residency

147th sighting in Glacier Bay & Icy Strait
Fluke of Bullethole
Bullethole Confirmed in the catalog @26458
May 2 – Sep 9, 2025 · Glacier Bay & Icy Strait

Four Months in the Bay

Settled into my old haunts for the long summer feeding season.

93 m
Deepest dive
3:52
Longest dive
581
Dives
Sightings
39
Days between first and last sighting
130

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 2, 202544 m6.9°C37 m
May 5, 202555 m6.8°C50 m
May 8, 2025107 m7.5°C57 m
May 9, 202589 m7.6°C64 m
May 17, 2025104 m7.6°C48 m
May 19, 202596 m7.5°C73 m
May 19, 202580 m7.5°C38 m
May 20, 2025114 m7.5°C90 m
May 21, 2025102 m7.7°C65 m
May 21, 2025116 m7.7°C82 m
May 23, 202596 m8.2°C79 m
May 23, 202584 m8.2°C66 m
May 24, 202576 m8.3°C66 m
May 28, 2025110 m8.1°C81 m
May 29, 2025109 m8.7°C93 m
May 30, 202581 m8.9°C51 m
Jun 1, 2025100 m8.9°C55 m
Jun 5, 2025120 m9.0°C90 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 2, 2025 — seafloor 44 m (measured), deepest dive 37 m (modelled)May 2May 5, 2025 — seafloor 55 m (measured), deepest dive 50 m (modelled)May 8, 2025 — seafloor 107 m (measured), deepest dive 57 m (modelled)May 9, 2025 — seafloor 89 m (measured), deepest dive 64 m (modelled)May 17, 2025 — seafloor 104 m (measured), deepest dive 48 m (modelled)May 19, 2025 — seafloor 96 m (measured), deepest dive 73 m (modelled)May 19, 2025 — seafloor 80 m (measured), deepest dive 38 m (modelled)May 20, 2025 — seafloor 114 m (measured), deepest dive 90 m (modelled)May 20May 21, 2025 — seafloor 102 m (measured), deepest dive 65 m (modelled)May 21, 2025 — seafloor 116 m (measured), deepest dive 82 m (modelled)May 23, 2025 — seafloor 96 m (measured), deepest dive 79 m (modelled)May 23, 2025 — seafloor 84 m (measured), deepest dive 66 m (modelled)May 24, 2025 — seafloor 76 m (measured), deepest dive 66 m (modelled)May 28, 2025 — seafloor 110 m (measured), deepest dive 81 m (modelled)May 29, 2025 — seafloor 109 m (measured), deepest dive 93 m (modelled)May 29May 30, 2025 — seafloor 81 m (measured), deepest dive 51 m (modelled)Jun 1, 2025 — seafloor 100 m (measured), deepest dive 55 m (modelled)Jun 5, 2025 — seafloor 120 m (measured), deepest dive 90 m (modelled)Jun 14, 2025 — seafloor 122 m (measured), deepest dive 67 m (modelled)Jun 17, 2025 — seafloor 142 m (measured), deepest dive 91 m (modelled)Jun 18, 2025 — seafloor 115 m (measured), deepest dive 79 m (modelled)Jun 19, 2025 — seafloor 124 m (measured), deepest dive 65 m (modelled)Jun 19Jun 20, 2025 — seafloor 64 m (measured), deepest dive 54 m (modelled)Jun 21, 2025 — seafloor 79 m (measured), deepest dive 58 m (modelled)Jun 23, 2025 — seafloor 253 m (measured), deepest dive 75 m (modelled)Jun 24, 2025 — seafloor 72 m (measured), deepest dive 46 m (modelled)Jun 25, 2025 — seafloor 6 m (measured), deepest dive 5 m (modelled)Jul 15, 2025 — seafloor 64 m (measured), deepest dive 54 m (modelled)Jul 19, 2025 — seafloor 86 m (measured), deepest dive 55 m (modelled)Jul 19Jul 23, 2025 — seafloor 137 m (measured), deepest dive 83 m (modelled)Jul 29, 2025 — seafloor 105 m (measured), deepest dive 39 m (modelled)Jul 31, 2025 — seafloor 76 m (measured), deepest dive 62 m (modelled)Aug 12, 2025 — seafloor 103 m (measured), deepest dive 54 m (modelled)Aug 16, 2025 — seafloor 97 m (measured), deepest dive 56 m (modelled)Aug 18, 2025 — seafloor 84 m (measured), deepest dive 76 m (modelled)Aug 21, 2025 — seafloor 79 m (measured), deepest dive 54 m (modelled)Aug 21Aug 23, 2025 — seafloor 122 m (measured), deepest dive 71 m (modelled)Sep 1, 2025 — seafloor 67 m (measured), deepest dive 35 m (modelled)Sep 9, 2025 — seafloor 88 m (measured), deepest dive 61 m (modelled)

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

Dives

93 m
Deepest dive
3:52
Longest dive
581
Dives
24 m
Avg dive depth
39
Sightings
130
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010093 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (109 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 29, 2025

measured
Seafloor depth
109 m
Sea-surface temperature
8.7°C
Distance from shore
1.0 km

Across the residency · 39 sightings

measured
Seafloor depth
6 m – 253 m
Sea-surface temperature
6.8°C – 15.0°C
Distance from shore
1.0 km – 2.0 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 39 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.