HW-MN0805709 – Residency
8th sighting in South Africa
HW-MN0805709 @150116
Dec 21 – 30, 2025 · South Africa
South Africa · Dec 2025
55 m
Deepest dive
2:45
Longest dive
75
Dives
- Sightings
- 8
- Days between first and last sighting
- 9
- 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 21, 2025 | 64 m | — | 55 m |
| Dec 27, 2025 | 53 m | — | 39 m |
| Dec 27, 2025 | 62 m | — | 29 m |
| Dec 28, 2025 | 81 m | — | 47 m |
| Dec 29, 2025 | 61 m | — | 30 m |
| Dec 29, 2025 | 45 m | — | 22 m |
| Dec 29, 2025 | 45 m | — | 39 m |
| Dec 30, 2025 | 83 m | — | 46 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
2:45
Longest dive
75
Dives
19 m
Avg dive depth
8
Sightings
9
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 (64 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 21, 2025
measured- Seafloor depth
- 64 m
- Sea-surface temperature
- —
- Distance from shore
- 4.0 km
Across the residency · 8 sightings
measured- Seafloor depth
- 45 m – 83 m
- Sea-surface temperature
- —
- 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.