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South Africa

HW-MN0805705 – Residency

9th sighting in South Africa
Fluke of HW-MN0805705
HW-MN0805705 Confirmed in the catalog @150031
Dec 18, 2025 – Jan 6, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

72 m
Deepest dive
3:24
Longest dive
69
Dives
Sightings
9
Days between first and last sighting
19
Deepest dive on record
72 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 18, 202579 m—63 m
Dec 23, 202522 m—9 m
Dec 27, 202562 m—53 m
Dec 29, 202561 m—22 m
Dec 29, 202545 m—39 m
Dec 30, 202526 m—21 m
Jan 2, 202682 m15.6°C67 m
Jan 5, 202682 m14.8°C72 m
Jan 6, 202693 m15.2°C61 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 18, 2025 — seafloor 79 m (measured), deepest dive 63 m (modelled)Dec 18Dec 23, 2025 — seafloor 22 m (measured), deepest dive 9 m (modelled)Dec 23Dec 27, 2025 — seafloor 62 m (measured), deepest dive 53 m (modelled)Dec 27Dec 29, 2025 — seafloor 61 m (measured), deepest dive 22 m (modelled)Dec 29Dec 29, 2025 — seafloor 45 m (measured), deepest dive 39 m (modelled)Dec 29Dec 30, 2025 — seafloor 26 m (measured), deepest dive 21 m (modelled)Dec 30Jan 2, 2026 — seafloor 82 m (measured), deepest dive 67 m (modelled)Jan 2Jan 5, 2026 — seafloor 82 m (measured), deepest dive 72 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 61 m (modelled)Jan 6

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

Dives

72 m
Deepest dive
3:24
Longest dive
69
Dives
23 m
Avg dive depth
9
Sightings
19
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010072 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (82 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 5, 2026

measured
Seafloor depth
82 m
Sea-surface temperature
14.8°C
Distance from shore
10.0 km

Across the residency · 9 sightings

measured
Seafloor depth
22 m – 93 m
Sea-surface temperature
14.8°C – 15.6°C
Distance from shore
2.0 km – 12.0 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 9 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.