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South Africa

HW-MN0805794 – Residency

10th sighting in South Africa
Fluke of HW-MN0805794
HW-MN0805794 Confirmed in the catalog @150419
Dec 27, 2025 – Jan 12, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

87 m
Deepest dive
3:11
Longest dive
136
Dives
Sightings
10
Days between first and last sighting
16
Deepest dive on record
87 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 27, 2025105 m—87 m
Dec 29, 202559 m—52 m
Dec 29, 202561 m—50 m
Dec 29, 202545 m—40 m
Dec 30, 202546 m—29 m
Dec 31, 202545 m—41 m
Jan 2, 202684 m15.6°C7 m
Jan 5, 202665 m14.8°C32 m
Jan 11, 202671 m15.2°C57 m
Jan 12, 202638 m15.1°C28 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 27, 2025 — seafloor 105 m (measured), deepest dive 87 m (modelled)Dec 27Dec 29, 2025 — seafloor 59 m (measured), deepest dive 52 m (modelled)Dec 29Dec 29, 2025 — seafloor 61 m (measured), deepest dive 50 m (modelled)Dec 29Dec 29, 2025 — seafloor 45 m (measured), deepest dive 40 m (modelled)Dec 29Dec 30, 2025 — seafloor 46 m (measured), deepest dive 29 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 41 m (modelled)Dec 31Jan 2, 2026 — seafloor 84 m (measured), deepest dive 7 m (modelled)Jan 2Jan 5, 2026 — seafloor 65 m (measured), deepest dive 32 m (modelled)Jan 5Jan 11, 2026 — seafloor 71 m (measured), deepest dive 57 m (modelled)Jan 11Jan 12, 2026 — seafloor 38 m (measured), deepest dive 28 m (modelled)Jan 12

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

Dives

87 m
Deepest dive
3:11
Longest dive
136
Dives
21 m
Avg dive depth
10
Sightings
16
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010087 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (105 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 27, 2025

measured
Seafloor depth
105 m
Sea-surface temperature
—
Distance from shore
9.0 km

Across the residency · 10 sightings

measured
Seafloor depth
38 m – 105 m
Sea-surface temperature
14.8°C – 15.6°C
Distance from shore
3.0 km – 14.0 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 10 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.