Risa
Try Deep freeDeep
Risa
Try Deep freeDeep
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
South Africa

HW-MN0805894 – Residency

8th sighting in South Africa
Fluke of HW-MN0805894
HW-MN0805894 Confirmed in the catalog @150753
Dec 27, 2025 – Jan 27, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

73 m
Deepest dive
4:01
Longest dive
111
Dives
Sightings
8
Days between first and last sighting
31
Deepest dive on record
73 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 27, 202550 m—38 m
Dec 30, 202546 m—42 m
Dec 30, 202546 m—28 m
Jan 5, 202660 m14.4°C42 m
Jan 12, 202638 m15.1°C27 m
Jan 13, 202689 m16.0°C73 m
Jan 26, 202642 m14.3°C35 m
Jan 27, 202699 m16.4°C26 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 50 m (measured), deepest dive 38 m (modelled)Dec 27Dec 30, 2025 — seafloor 46 m (measured), deepest dive 42 m (modelled)Dec 30Dec 30, 2025 — seafloor 46 m (measured), deepest dive 28 m (modelled)Dec 30Jan 5, 2026 — seafloor 60 m (measured), deepest dive 42 m (modelled)Jan 5Jan 12, 2026 — seafloor 38 m (measured), deepest dive 27 m (modelled)Jan 12Jan 13, 2026 — seafloor 89 m (measured), deepest dive 73 m (modelled)Jan 13Jan 26, 2026 — seafloor 42 m (measured), deepest dive 35 m (modelled)Jan 26Jan 27, 2026 — seafloor 99 m (measured), deepest dive 26 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
4:01
Longest dive
111
Dives
19 m
Avg dive depth
8
Sightings
31
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010073 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (89 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 13, 2026

measured
Seafloor depth
89 m
Sea-surface temperature
16.0°C
Distance from shore
7.0 km

Across the residency · 8 sightings

measured
Seafloor depth
38 m – 99 m
Sea-surface temperature
14.3°C – 16.4°C
Distance from shore
3.0 km – 11.0 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 8 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.