HW-MN0805861 – Residency
3rd sighting in South Africa
HW-MN0805861 @150539
Dec 28, 2025 – Feb 7, 2026 · South Africa
South Africa · Dec 2025 – Feb 2026
71 m
Deepest dive
2:41
Longest dive
36
Dives
- Sightings
- 3
- Days between first and last sighting
- 41
- Deepest dive on record
- 71 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) |
|---|---|---|---|
| Dec 28, 2025 | 81 m | — | 71 m |
| Jan 17, 2026 | 85 m | 14.1°C | 41 m |
| Feb 7, 2026 | 81 m | 16.8°C | 24 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
71 m
Deepest dive
2:41
Longest dive
36
Dives
22 m
Avg dive depth
3
Sightings
41
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 (81 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 28, 2025
measured- Seafloor depth
- 81 m
- Sea-surface temperature
- —
- Distance from shore
- 10.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 81 m – 85 m
- Sea-surface temperature
- 14.1°C – 16.8°C
- Distance from shore
- 4.0 km – 10.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.