HW-MN0805863 – Residency
4th sighting in South Africa
HW-MN0805863 @150541
Dec 27, 2025 – Jan 14, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
64 m
Deepest dive
2:21
Longest dive
53
Dives
- Sightings
- 4
- Days between first and last sighting
- 18
- Deepest dive on record
- 64 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 27, 2025 | 61 m | — | 50 m |
| Dec 28, 2025 | 81 m | — | 64 m |
| Dec 29, 2025 | 45 m | — | 39 m |
| Jan 14, 2026 | 37 m | 15.7°C | 33 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
64 m
Deepest dive
2:21
Longest dive
53
Dives
22 m
Avg dive depth
4
Sightings
18
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 · 4 sightings
measured- Seafloor depth
- 37 m – 81 m
- Sea-surface temperature
- 15.7°C
- Distance from shore
- 3.0 km – 10.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.