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

HW-MN0804482 – Residency

10th sighting in South Africa
Fluke of HW-MN0804482
HW-MN0804482 Confirmed in the catalog @132158
Jan 12 – 17, 2026 · South Africa

South Africa · Jan 2026

65 m
Deepest dive
2:46
Longest dive
89
Dives
Sightings
5
Days between first and last sighting
5

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jan 12, 202638 m15.1°C34 m
Jan 17, 202685 m14.1°C62 m
Jan 17, 202685 m14.1°C56 m
Jan 17, 202685 m14.1°C49 m
Jan 17, 202685 m14.1°C65 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
Jan 12, 2026 — seafloor 38 m (measured), deepest dive 34 m (modelled)Jan 12Jan 17, 2026 — seafloor 85 m (measured), deepest dive 62 m (modelled)Jan 17Jan 17, 2026 — seafloor 85 m (measured), deepest dive 56 m (modelled)Jan 17Jan 17, 2026 — seafloor 85 m (measured), deepest dive 49 m (modelled)Jan 17Jan 17, 2026 — seafloor 85 m (measured), deepest dive 65 m (modelled)Jan 17

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

Dives

65 m
Deepest dive
2:46
Longest dive
89
Dives
21 m
Avg dive depth
5
Sightings
5
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (85 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 17, 2026

measured
Seafloor depth
85 m
Sea-surface temperature
14.1°C
Distance from shore
7.0 km

Across the residency · 5 sightings

measured
Seafloor depth
38 m – 85 m
Sea-surface temperature
14.1°C – 15.1°C
Distance from shore
7.0 km – 8.0 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 5 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.