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

HW-MN0805889 – Residency

13th sighting in South Africa
Fluke of HW-MN0805889
HW-MN0805889 Confirmed in the catalog @150748
Dec 29, 2025 – Jan 30, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

65 m
Deepest dive
2:48
Longest dive
133
Dives
Sightings
13
Days between first and last sighting
32
Deepest dive on record
65 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 29, 202545 m—24 m
Dec 30, 202546 m—42 m
Dec 31, 202545 m—27 m
Jan 2, 202679 m15.6°C48 m
Jan 5, 202663 m14.8°C53 m
Jan 5, 202682 m14.8°C59 m
Jan 5, 202665 m14.8°C55 m
Jan 6, 202693 m15.2°C65 m
Jan 12, 202638 m15.1°C27 m
Jan 13, 202669 m16.0°C40 m
Jan 26, 202659 m14.3°C50 m
Jan 29, 202662 m14.7°C56 m
Jan 30, 202634 m14.6°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 29, 2025 — seafloor 45 m (measured), deepest dive 24 m (modelled)Dec 29Dec 30, 2025 — seafloor 46 m (measured), deepest dive 42 m (modelled)Dec 31, 2025 — seafloor 45 m (measured), deepest dive 27 m (modelled)Jan 2, 2026 — seafloor 79 m (measured), deepest dive 48 m (modelled)Jan 2Jan 5, 2026 — seafloor 63 m (measured), deepest dive 53 m (modelled)Jan 5, 2026 — seafloor 82 m (measured), deepest dive 59 m (modelled)Jan 5, 2026 — seafloor 65 m (measured), deepest dive 55 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 65 m (modelled)Jan 12, 2026 — seafloor 38 m (measured), deepest dive 27 m (modelled)Jan 13, 2026 — seafloor 69 m (measured), deepest dive 40 m (modelled)Jan 13Jan 26, 2026 — seafloor 59 m (measured), deepest dive 50 m (modelled)Jan 29, 2026 — seafloor 62 m (measured), deepest dive 56 m (modelled)Jan 30, 2026 — seafloor 34 m (measured), deepest dive 28 m (modelled)Jan 30

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

Dives

65 m
Deepest dive
2:48
Longest dive
133
Dives
18 m
Avg dive depth
13
Sightings
32
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (93 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 6, 2026

measured
Seafloor depth
93 m
Sea-surface temperature
15.2°C
Distance from shore
9.0 km

Across the residency · 13 sightings

measured
Seafloor depth
34 m – 93 m
Sea-surface temperature
14.3°C – 16.0°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 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).

Happywhale runs on donations: support Happywhale →

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