HW-MN0805971 – Residency
4th sighting in South Africa
HW-MN0805971 @150951
Dec 30, 2025 – Jan 26, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
55 m
Deepest dive
3:05
Longest dive
50
Dives
- Sightings
- 4
- Days between first and last sighting
- 27
- Deepest dive on record
- 55 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 30, 2025 | 46 m | — | 39 m |
| Dec 30, 2025 | 62 m | — | 29 m |
| Jan 5, 2026 | 65 m | 14.8°C | 55 m |
| Jan 26, 2026 | 70 m | 15.9°C | 51 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
55 m
Deepest dive
3:05
Longest dive
50
Dives
21 m
Avg dive depth
4
Sightings
27
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 (65 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 5, 2026
measured- Seafloor depth
- 65 m
- Sea-surface temperature
- 14.8°C
- Distance from shore
- 6.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 46 m – 70 m
- Sea-surface temperature
- 14.8°C – 15.9°C
- Distance from shore
- 3.0 km – 7.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.