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South Africa

HW-MN0804156 – Residency

29th sighting in South Africa
Fluke of HW-MN0804156
HW-MN0804156 Confirmed in the catalog @126741
Dec 27, 2025 – Feb 7, 2026 · South Africa

South Africa · Dec 2025 – Feb 2026

76 m
Deepest dive
4:26
Longest dive
173
Dives
Sightings
11
Days between first and last sighting
42
Deepest dive on record
76 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 27, 202561 m—33 m
Dec 28, 202561 m—37 m
Dec 28, 202581 m—72 m
Dec 29, 202545 m—23 m
Dec 30, 202546 m—41 m
Dec 30, 202561 m—41 m
Dec 31, 202545 m—34 m
Jan 5, 202682 m14.8°C58 m
Jan 5, 202665 m14.8°C55 m
Jan 6, 202693 m15.2°C76 m
Feb 7, 202681 m16.8°C73 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 61 m (measured), deepest dive 33 m (modelled)Dec 27Dec 28, 2025 — seafloor 61 m (measured), deepest dive 37 m (modelled)Dec 28Dec 28, 2025 — seafloor 81 m (measured), deepest dive 72 m (modelled)Dec 28Dec 29, 2025 — seafloor 45 m (measured), deepest dive 23 m (modelled)Dec 29Dec 30, 2025 — seafloor 46 m (measured), deepest dive 41 m (modelled)Dec 30Dec 30, 2025 — seafloor 61 m (measured), deepest dive 41 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 34 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 58 m (modelled)Jan 5Jan 5, 2026 — seafloor 65 m (measured), deepest dive 55 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 76 m (modelled)Jan 6Feb 7, 2026 — seafloor 81 m (measured), deepest dive 73 m (modelled)Feb 7

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

Dives

76 m
Deepest dive
4:26
Longest dive
173
Dives
19 m
Avg dive depth
11
Sightings
42
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010076 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 · 11 sightings

measured
Seafloor depth
45 m – 93 m
Sea-surface temperature
14.8°C – 16.8°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 11 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.