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South Africa

HW-MN0805834 – Residency

8th sighting in South Africa
Fluke of HW-MN0805834
HW-MN0805834 Confirmed in the catalog @150481
Dec 30, 2025 – Jan 26, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

85 m
Deepest dive
4:20
Longest dive
98
Dives
Sightings
8
Days between first and last sighting
27
Deepest dive on record
85 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 30, 202541 m—31 m
Dec 30, 202546 m—40 m
Jan 5, 202682 m14.8°C68 m
Jan 6, 202693 m15.2°C85 m
Jan 12, 202638 m15.1°C31 m
Jan 14, 202637 m15.7°C15 m
Jan 17, 202685 m14.1°C56 m
Jan 26, 202642 m14.3°C18 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 30, 2025 — seafloor 41 m (measured), deepest dive 31 m (modelled)Dec 30Dec 30, 2025 — seafloor 46 m (measured), deepest dive 40 m (modelled)Dec 30Jan 5, 2026 — seafloor 82 m (measured), deepest dive 68 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 85 m (modelled)Jan 6Jan 12, 2026 — seafloor 38 m (measured), deepest dive 31 m (modelled)Jan 12Jan 14, 2026 — seafloor 37 m (measured), deepest dive 15 m (modelled)Jan 14Jan 17, 2026 — seafloor 85 m (measured), deepest dive 56 m (modelled)Jan 17Jan 26, 2026 — seafloor 42 m (measured), deepest dive 18 m (modelled)Jan 26

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

Dives

85 m
Deepest dive
4:20
Longest dive
98
Dives
19 m
Avg dive depth
8
Sightings
27
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010085 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (93 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 6, 2026

measured
Seafloor depth
93 m
Sea-surface temperature
15.2°C
Distance from shore
9.0 km

Across the residency · 8 sightings

measured
Seafloor depth
37 m – 93 m
Sea-surface temperature
14.1°C – 15.7°C
Distance from shore
3.0 km – 10.0 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.