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

HW-MN0804516 – Residency

11th sighting in South Africa
Fluke of HW-MN0804516
HW-MN0804516 Confirmed in the catalog @132217
Nov 7, 2025 – Jan 30, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

58 m
Deepest dive
2:14
Longest dive
86
Dives
Sightings
6
Days between first and last sighting
84
Deepest dive on record
58 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Nov 7, 202552 m—46 m
Dec 29, 202545 m—40 m
Dec 30, 202546 m—40 m
Dec 31, 202545 m—29 m
Jan 5, 202682 m14.8°C58 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 7, 2025 — seafloor 52 m (measured), deepest dive 46 m (modelled)Nov 7Dec 29, 2025 — seafloor 45 m (measured), deepest dive 40 m (modelled)Dec 29Dec 30, 2025 — seafloor 46 m (measured), deepest dive 40 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 29 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 58 m (modelled)Jan 5Jan 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

58 m
Deepest dive
2:14
Longest dive
86
Dives
18 m
Avg dive depth
6
Sightings
84
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010058 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.

Unlock with Risa Deep

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 · 6 sightings

measured
Seafloor depth
34 m – 82 m
Sea-surface temperature
14.6°C – 14.8°C
Distance from shore
3.0 km – 10.0 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 6 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.