SEAK-1539 – Residency
14th sighting in Glacier Bay & Icy Strait
SEAK-1539 @23300
Jun 11 – 25, 2026 · Glacier Bay & Icy Strait
Herring Light, June
Glacier Bay's cold water again feels like coming home—every June, arriving.
98 m
Deepest dive
3:24
Longest dive
34
Dives
- Sightings
- 2
- Days between first and last sighting
- 14
- Deepest dive on record
- 98 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 11, 2026 | 139 m | 10.0°C | 98 m |
| Jun 25, 2026 | 133 m | 11.6°C | 87 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
98 m
Deepest dive
3:24
Longest dive
34
Dives
29 m
Avg dive depth
2
Sightings
14
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (139 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 11, 2026
measured- Seafloor depth
- 139 m
- Sea-surface temperature
- 10.0°C
- Distance from shore
- 1.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 133 m – 139 m
- Sea-surface temperature
- 10.0°C – 11.6°C
- Distance from shore
- 1.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.