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

HW-MN0804700 – Residency

14th sighting in South Africa
Fluke of HW-MN0804700
HW-MN0804700 Confirmed in the catalog @132888
Dec 11, 2025 – Feb 7, 2026 · South Africa

South Africa · Dec 2025 – Feb 2026

65 m
Deepest dive
2:58
Longest dive
75
Dives
Sightings
6
Days between first and last sighting
58

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 11, 202537 m—28 m
Dec 11, 202578 m—46 m
Dec 15, 202571 m—59 m
Dec 16, 202541 m—17 m
Jan 27, 202699 m16.4°C53 m
Feb 7, 202681 m16.8°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
Dec 11, 2025 — seafloor 37 m (measured), deepest dive 28 m (modelled)Dec 11Dec 11, 2025 — seafloor 78 m (measured), deepest dive 46 m (modelled)Dec 11Dec 15, 2025 — seafloor 71 m (measured), deepest dive 59 m (modelled)Dec 15Dec 16, 2025 — seafloor 41 m (measured), deepest dive 17 m (modelled)Dec 16Jan 27, 2026 — seafloor 99 m (measured), deepest dive 53 m (modelled)Jan 27Feb 7, 2026 — seafloor 81 m (measured), deepest dive 65 m (modelled)Feb 7

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

Dives

65 m
Deepest dive
2:58
Longest dive
75
Dives
18 m
Avg dive depth
6
Sightings
58
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (81 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 · Feb 7, 2026

measured
Seafloor depth
81 m
Sea-surface temperature
16.8°C
Distance from shore
4.0 km

Across the residency · 6 sightings

measured
Seafloor depth
37 m – 99 m
Sea-surface temperature
16.4°C – 16.8°C
Distance from shore
2.0 km – 11.0 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 6 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.