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South Africa

HW-MN0804274 – Residency

18th sighting in South Africa
Fluke of HW-MN0804274
HW-MN0804274 Confirmed in the catalog @127719
Nov 25, 2025 – Jan 30, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

54 m
Deepest dive
2:15
Longest dive
123
Dives
Sightings
11
Days between first and last sighting
66

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 25, 202557 m—40 m
Dec 11, 202548 m—32 m
Dec 27, 202562 m—51 m
Dec 28, 202581 m—34 m
Dec 28, 202561 m—54 m
Dec 29, 202561 m—49 m
Dec 29, 202545 m—32 m
Dec 30, 202546 m—25 m
Jan 12, 202638 m15.1°C26 m
Jan 29, 202662 m14.7°C44 m
Jan 30, 202634 m14.6°C27 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 57 m (measured), deepest dive 40 m (modelled)Nov 25Dec 11, 2025 — seafloor 48 m (measured), deepest dive 32 m (modelled)Dec 11Dec 27, 2025 — seafloor 62 m (measured), deepest dive 51 m (modelled)Dec 27Dec 28, 2025 — seafloor 81 m (measured), deepest dive 34 m (modelled)Dec 28Dec 28, 2025 — seafloor 61 m (measured), deepest dive 54 m (modelled)Dec 28Dec 29, 2025 — seafloor 61 m (measured), deepest dive 49 m (modelled)Dec 29Dec 29, 2025 — seafloor 45 m (measured), deepest dive 32 m (modelled)Dec 29Dec 30, 2025 — seafloor 46 m (measured), deepest dive 25 m (modelled)Dec 30Jan 12, 2026 — seafloor 38 m (measured), deepest dive 26 m (modelled)Jan 12Jan 29, 2026 — seafloor 62 m (measured), deepest dive 44 m (modelled)Jan 29Jan 30, 2026 — seafloor 34 m (measured), deepest dive 27 m (modelled)Jan 30

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

Dives

54 m
Deepest dive
2:15
Longest dive
123
Dives
17 m
Avg dive depth
11
Sightings
66
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010054 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (61 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 · Dec 28, 2025

measured
Seafloor depth
61 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 11 sightings

measured
Seafloor depth
34 m – 81 m
Sea-surface temperature
14.6°C – 15.1°C
Distance from shore
3.0 km – 10.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 11 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.