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

HW-MN0804449 – Residency

9th sighting in South Africa
Fluke of HW-MN0804449
HW-MN0804449 Confirmed in the catalog @132025
Dec 30, 2025 – Jan 2, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

77 m
Deepest dive
3:17
Longest dive
53
Dives
Sightings
3
Days between first and last sighting
3
Deepest dive on record
77 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 30, 202582 m—72 m
Jan 2, 202683 m15.8°C72 m
Jan 2, 202697 m17.0°C77 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 30, 2025 — seafloor 82 m (measured), deepest dive 72 m (modelled)Dec 30Jan 2, 2026 — seafloor 83 m (measured), deepest dive 72 m (modelled)Jan 2Jan 2, 2026 — seafloor 97 m (measured), deepest dive 77 m (modelled)Jan 2

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

Dives

77 m
Deepest dive
3:17
Longest dive
53
Dives
26 m
Avg dive depth
3
Sightings
3
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010077 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (97 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 2, 2026

measured
Seafloor depth
97 m
Sea-surface temperature
17.0°C
Distance from shore
3.0 km

Across the residency · 3 sightings

measured
Seafloor depth
82 m – 97 m
Sea-surface temperature
15.8°C – 17.0°C
Distance from shore
3.0 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 3 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.