HW-MN0805903 – Residency
8th sighting in South Africa
HW-MN0805903 @150777
Dec 28, 2025 – Feb 7, 2026 · South Africa
South Africa · Dec 2025 – Feb 2026
74 m
Deepest dive
2:36
Longest dive
143
Dives
- Sightings
- 8
- Days between first and last sighting
- 41
- Deepest dive on record
- 74 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 | 61 m | — | 42 m |
| Dec 28, 2025 | 81 m | — | 74 m |
| Dec 29, 2025 | 45 m | — | 40 m |
| Dec 30, 2025 | 26 m | — | 20 m |
| Dec 31, 2025 | 45 m | — | 32 m |
| Jan 5, 2026 | 82 m | 14.8°C | 58 m |
| Jan 28, 2026 | 54 m | 19.0°C | 34 m |
| Feb 7, 2026 | 81 m | 16.8°C | 31 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
74 m
Deepest dive
2:36
Longest dive
143
Dives
18 m
Avg dive depth
8
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 · 8 sightings
measured- Seafloor depth
- 26 m – 82 m
- Sea-surface temperature
- 14.8°C – 19.0°C
- Distance from shore
- 3.0 km – 10.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 8 catalogued encounters on Happywhale.