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South Africa

HW-MN0804444 – Residency

15th sighting in South Africa
Fluke of HW-MN0804444
HW-MN0804444 Confirmed in the catalog @131896
Dec 29, 2025 – Jan 30, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

83 m
Deepest dive
3:28
Longest dive
150
Dives
Sightings
10
Days between first and last sighting
32
Deepest dive on record
83 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 29, 202557 m—23 m
Dec 29, 202561 m—38 m
Dec 30, 202565 m—50 m
Dec 30, 202526 m—19 m
Dec 31, 202545 m—39 m
Jan 5, 202682 m14.8°C60 m
Jan 5, 202665 m14.8°C47 m
Jan 6, 202693 m15.2°C83 m
Jan 29, 202662 m14.7°C30 m
Jan 30, 202634 m14.6°C31 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 29, 2025 — seafloor 57 m (measured), deepest dive 23 m (modelled)Dec 29Dec 29, 2025 — seafloor 61 m (measured), deepest dive 38 m (modelled)Dec 29Dec 30, 2025 — seafloor 65 m (measured), deepest dive 50 m (modelled)Dec 30Dec 30, 2025 — seafloor 26 m (measured), deepest dive 19 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 39 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 60 m (modelled)Jan 5Jan 5, 2026 — seafloor 65 m (measured), deepest dive 47 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 83 m (modelled)Jan 6Jan 29, 2026 — seafloor 62 m (measured), deepest dive 30 m (modelled)Jan 29Jan 30, 2026 — seafloor 34 m (measured), deepest dive 31 m (modelled)Jan 30

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

Dives

83 m
Deepest dive
3:28
Longest dive
150
Dives
18 m
Avg dive depth
10
Sightings
32
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010083 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 · 10 sightings

measured
Seafloor depth
26 m – 93 m
Sea-surface temperature
14.6°C – 15.2°C
Distance from shore
4.0 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 10 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.