Excelsior – Residency
15th sighting in Chatham Strait
Excelsior @11149
Jun 5 – Sep 25, 2026 · Chatham Strait
This Green Hallway, Full of Life
Crowded waters, familiar bends, and my calf learning to breathe here too.
86 m
Deepest dive
3:10
Longest dive
26
Dives
- Sightings
- 3
- Days between first and last sighting
- 111
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 5, 2026 | 330 m | 9.5°C | 86 m |
| Aug 12, 2026 | 102 m | 13.7°C | 35 m |
| Sep 25, 2026 | 88 m | 10.0°C | 66 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
86 m
Deepest dive
3:10
Longest dive
26
Dives
25 m
Avg dive depth
3
Sightings
111
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 (330 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 5, 2026
measured- Seafloor depth
- 330 m
- Sea-surface temperature
- 9.5°C
- Distance from shore
- 4.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 88 m – 330 m
- Sea-surface temperature
- 9.5°C – 13.7°C
- Distance from shore
- 2.0 km – 4.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.