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

HW-MN0804681 – Residency

3rd sighting in South Africa
Fluke of HW-MN0804681
HW-MN0804681 Confirmed in the catalog @132853
Dec 28, 2024 – Jan 8, 2025 · South Africa

South Africa · Dec 2024 – Jan 2025

47 m
Deepest dive
2:06
Longest dive
30
Dives
Sightings
3
Days between first and last sighting
11
Deepest dive on record
47 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 28, 202449 m—29 m
Dec 29, 202452 m—47 m
Jan 8, 2025-5 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 28, 2024 — seafloor 49 m (measured), deepest dive 29 m (modelled)Dec 28Dec 29, 2024 — seafloor 52 m (measured), deepest dive 47 m (modelled)Dec 29Jan 8, 2025 — seafloor -5 m (measured), deepest dive — (modelled)Jan 8

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

Dives

47 m
Deepest dive
2:06
Longest dive
30
Dives
18 m
Avg dive depth
3
Sightings
11
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255047 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (52 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 · Dec 29, 2024

measured
Seafloor depth
52 m
Sea-surface temperature
—
Distance from shore
3.0 km

Across the residency · 3 sightings

measured
Seafloor depth
-5 m – 52 m
Sea-surface temperature
—
Distance from shore
1.0 km – 3.0 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 3 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.