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

HW-MN0804505 – Residency

5th sighting in South Africa
Fluke of HW-MN0804505
HW-MN0804505 Confirmed in the catalog @132190
Nov 17, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

47 m
Deepest dive
1:58
Longest dive
55
Dives
Sightings
5
Days between first and last sighting
95
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)
Nov 17, 202474 m—47 m
Nov 23, 202430 m—26 m
Jan 5, 202584 m—26 m
Jan 19, 202553 m—42 m
Feb 20, 202549 m—43 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 17, 2024 — seafloor 74 m (measured), deepest dive 47 m (modelled)Nov 17Nov 23, 2024 — seafloor 30 m (measured), deepest dive 26 m (modelled)Nov 23Jan 5, 2025 — seafloor 84 m (measured), deepest dive 26 m (modelled)Jan 5Jan 19, 2025 — seafloor 53 m (measured), deepest dive 42 m (modelled)Jan 19Feb 20, 2025 — seafloor 49 m (measured), deepest dive 43 m (modelled)Feb 20

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

Dives

47 m
Deepest dive
1:58
Longest dive
55
Dives
17 m
Avg dive depth
5
Sightings
95
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 (74 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 · Nov 17, 2024

measured
Seafloor depth
74 m
Sea-surface temperature
—
Distance from shore
5.0 km

Across the residency · 5 sightings

measured
Seafloor depth
30 m – 84 m
Sea-surface temperature
—
Distance from shore
2.0 km – 7.0 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.