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

HW-MN0804811 – Residency

9th sighting in South Africa
Fluke of HW-MN0804811
HW-MN0804811 Confirmed in the catalog @133044
Nov 25, 2025 – Jan 29, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

46 m
Deepest dive
2:02
Longest dive
49
Dives
Sightings
6
Days between first and last sighting
65

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 25, 202530 m—17 m
Nov 25, 202552 m—24 m
Dec 30, 202526 m—21 m
Jan 14, 202637 m15.7°C22 m
Jan 26, 202669 m14.3°C46 m
Jan 29, 202664 m14.7°C33 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
Nov 25, 2025 — seafloor 30 m (measured), deepest dive 17 m (modelled)Nov 25Nov 25, 2025 — seafloor 52 m (measured), deepest dive 24 m (modelled)Nov 25Dec 30, 2025 — seafloor 26 m (measured), deepest dive 21 m (modelled)Dec 30Jan 14, 2026 — seafloor 37 m (measured), deepest dive 22 m (modelled)Jan 14Jan 26, 2026 — seafloor 69 m (measured), deepest dive 46 m (modelled)Jan 26Jan 29, 2026 — seafloor 64 m (measured), deepest dive 33 m (modelled)Jan 29

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

Dives

46 m
Deepest dive
2:02
Longest dive
49
Dives
14 m
Avg dive depth
6
Sightings
65
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255046 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (69 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 26, 2026

measured
Seafloor depth
69 m
Sea-surface temperature
14.3°C
Distance from shore
6.0 km

Across the residency · 6 sightings

measured
Seafloor depth
26 m – 69 m
Sea-surface temperature
14.3°C – 15.7°C
Distance from shore
2.0 km – 9.0 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.