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South Africa

HW-MN0805758 – Residency

8th sighting in South Africa
Fluke of HW-MN0805758
HW-MN0805758 Confirmed in the catalog @150373
Dec 27, 2025 – Jan 29, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

77 m
Deepest dive
3:01
Longest dive
89
Dives
Sightings
8
Days between first and last sighting
33
Deepest dive on record
77 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 27, 202562 m—46 m
Dec 29, 202561 m—17 m
Dec 29, 202545 m—40 m
Jan 2, 202682 m15.6°C65 m
Jan 5, 202682 m14.8°C60 m
Jan 7, 2026132 m18.3°C77 m
Jan 26, 202667 m14.2°C51 m
Jan 29, 202664 m14.7°C56 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Dec 27, 2025 — seafloor 62 m (measured), deepest dive 46 m (modelled)Dec 27Dec 29, 2025 — seafloor 61 m (measured), deepest dive 17 m (modelled)Dec 29Dec 29, 2025 — seafloor 45 m (measured), deepest dive 40 m (modelled)Dec 29Jan 2, 2026 — seafloor 82 m (measured), deepest dive 65 m (modelled)Jan 2Jan 5, 2026 — seafloor 82 m (measured), deepest dive 60 m (modelled)Jan 5Jan 7, 2026 — seafloor 132 m (measured), deepest dive 77 m (modelled)Jan 7Jan 26, 2026 — seafloor 67 m (measured), deepest dive 51 m (modelled)Jan 26Jan 29, 2026 — seafloor 64 m (measured), deepest dive 56 m (modelled)Jan 29

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

77 m
Deepest dive
3:01
Longest dive
89
Dives
24 m
Avg dive depth
8
Sightings
33
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010077 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (132 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Jan 7, 2026

measured
Seafloor depth
132 m
Sea-surface temperature
18.3°C
Distance from shore
6.0 km

Across the residency · 8 sightings

measured
Seafloor depth
45 m – 132 m
Sea-surface temperature
14.2°C – 18.3°C
Distance from shore
3.0 km – 12.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 8 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.