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

Zulu 2024 – Residency

34th sighting in South Africa
Fluke of Zulu 2024
Zulu 2024 Confirmed in the catalog @122496
Oct 4 – Dec 11, 2025 · South Africa

South Africa · Oct – Dec 2025

52 m
Deepest dive
2:29
Longest dive
82
Dives
Sightings
8
Days between first and last sighting
68
Deepest dive on record
52 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Oct 4, 202526 m—23 m
Oct 5, 202521 m—18 m
Oct 7, 202521 m—17 m
Oct 8, 202526 m—23 m
Oct 10, 2025-3 m——
Dec 10, 202548 m—23 m
Dec 11, 202537 m—32 m
Dec 11, 202576 m—52 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
Oct 4, 2025 — seafloor 26 m (measured), deepest dive 23 m (modelled)Oct 4Oct 5, 2025 — seafloor 21 m (measured), deepest dive 18 m (modelled)Oct 5Oct 7, 2025 — seafloor 21 m (measured), deepest dive 17 m (modelled)Oct 7Oct 8, 2025 — seafloor 26 m (measured), deepest dive 23 m (modelled)Oct 8Oct 10, 2025 — seafloor -3 m (measured), deepest dive — (modelled)Oct 10Dec 10, 2025 — seafloor 48 m (measured), deepest dive 23 m (modelled)Dec 10Dec 11, 2025 — seafloor 37 m (measured), deepest dive 32 m (modelled)Dec 11Dec 11, 2025 — seafloor 76 m (measured), deepest dive 52 m (modelled)Dec 11

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

Dives

52 m
Deepest dive
2:29
Longest dive
82
Dives
16 m
Avg dive depth
8
Sightings
68
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010052 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (76 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.

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Place

Where this happened · Dec 11, 2025

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

Across the residency · 8 sightings

measured
Seafloor depth
-3 m – 76 m
Sea-surface temperature
—
Distance from shore
1.0 km – 6.0 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 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).

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