2017-2018 calf of Chin Up – Residency
47th sighting in Monterey Bay
2017-2018 calf of Chin Up @24707
Oct 17 – Dec 6, 2025 · Monterey Bay
Monterey Bay · Oct – Dec 2025
78 m
Deepest dive
2:43
Longest dive
76
Dives
- Sightings
- 6
- Days between first and last sighting
- 50
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Oct 17, 2025 | 53 m | 15.4°C | 48 m |
| Oct 20, 2025 | 81 m | 15.8°C | 49 m |
| Nov 7, 2025 | 36 m | 14.8°C | 32 m |
| Nov 23, 2025 | 81 m | 14.7°C | 45 m |
| Dec 5, 2025 | 86 m | 14.1°C | 78 m |
| Dec 6, 2025 | 79 m | 14.2°C | 45 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
78 m
Deepest dive
2:43
Longest dive
76
Dives
21 m
Avg dive depth
6
Sightings
50
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 (86 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 5, 2025
measured- Seafloor depth
- 86 m
- Sea-surface temperature
- 14.1°C
- Distance from shore
- 7.0 km
Across the residency · 6 sightings
measured- Seafloor depth
- 36 m – 86 m
- Sea-surface temperature
- 14.1°C – 15.8°C
- Distance from shore
- 5.0 km – 21.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 6 catalogued encounters on Happywhale.