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

HW-MN0802863 – Residency

11th sighting in South Africa
Fluke of HW-MN0802863
HW-MN0802863 Confirmed in the catalog @110138
Nov 29, 2024 – Jan 22, 2025 · South Africa

South Africa · Nov 2024 – Jan 2025

57 m
Deepest dive
2:15
Longest dive
52
Dives
Sightings
5
Days between first and last sighting
54

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Nov 29, 202428 m—23 m
Dec 31, 202477 m—39 m
Jan 19, 202571 m—57 m
Jan 19, 202563 m—32 m
Jan 22, 2025141 m—40 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 29, 2024 — seafloor 28 m (measured), deepest dive 23 m (modelled)Nov 29Dec 31, 2024 — seafloor 77 m (measured), deepest dive 39 m (modelled)Dec 31Jan 19, 2025 — seafloor 71 m (measured), deepest dive 57 m (modelled)Jan 19Jan 19, 2025 — seafloor 63 m (measured), deepest dive 32 m (modelled)Jan 19Jan 22, 2025 — seafloor 141 m (measured), deepest dive 40 m (modelled)Jan 22

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

Dives

57 m
Deepest dive
2:15
Longest dive
52
Dives
19 m
Avg dive depth
5
Sightings
54
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010057 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (71 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 19, 2025

measured
Seafloor depth
71 m
Sea-surface temperature
—
Distance from shore
7.0 km

Across the residency · 5 sightings

measured
Seafloor depth
28 m – 141 m
Sea-surface temperature
—
Distance from shore
2.0 km – 18.0 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 5 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.