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South Africa

HW-MN0804440 – Residency

19th sighting in South Africa
Fluke of HW-MN0804440
HW-MN0804440 Confirmed in the catalog @131866
Nov 17, 2025 – Jan 27, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

73 m
Deepest dive
3:09
Longest dive
196
Dives
Sightings
13
Days between first and last sighting
71
Deepest dive on record
73 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 17, 202515 m—14 m
Dec 28, 202581 m—73 m
Dec 29, 202561 m—43 m
Dec 29, 202545 m—35 m
Dec 30, 202538 m—34 m
Dec 30, 202546 m—38 m
Dec 31, 202545 m—41 m
Jan 5, 202682 m14.8°C61 m
Jan 5, 202665 m14.8°C45 m
Jan 6, 202693 m15.2°C47 m
Jan 12, 202638 m15.1°C27 m
Jan 17, 202682 m14.1°C60 m
Jan 27, 202699 m16.4°C60 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 17, 2025 — seafloor 15 m (measured), deepest dive 14 m (modelled)Nov 17Dec 28, 2025 — seafloor 81 m (measured), deepest dive 73 m (modelled)Dec 29, 2025 — seafloor 61 m (measured), deepest dive 43 m (modelled)Dec 29, 2025 — seafloor 45 m (measured), deepest dive 35 m (modelled)Dec 29Dec 30, 2025 — seafloor 38 m (measured), deepest dive 34 m (modelled)Dec 30, 2025 — seafloor 46 m (measured), deepest dive 38 m (modelled)Dec 31, 2025 — seafloor 45 m (measured), deepest dive 41 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 61 m (modelled)Jan 5, 2026 — seafloor 65 m (measured), deepest dive 45 m (modelled)Jan 6, 2026 — seafloor 93 m (measured), deepest dive 47 m (modelled)Jan 6Jan 12, 2026 — seafloor 38 m (measured), deepest dive 27 m (modelled)Jan 17, 2026 — seafloor 82 m (measured), deepest dive 60 m (modelled)Jan 27, 2026 — seafloor 99 m (measured), deepest dive 60 m (modelled)Jan 27

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

Dives

73 m
Deepest dive
3:09
Longest dive
196
Dives
20 m
Avg dive depth
13
Sightings
71
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010073 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 · Dec 28, 2025

measured
Seafloor depth
81 m
Sea-surface temperature
—
Distance from shore
10.0 km

Across the residency · 13 sightings

measured
Seafloor depth
15 m – 99 m
Sea-surface temperature
14.1°C – 16.4°C
Distance from shore
3.0 km – 11.0 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 13 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.