Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Antarctic Peninsula

AHWC-4346 – Residency

3rd sighting in Antarctic Peninsula
Fluke of AHWC-4346
AHWC-4346 Confirmed in the catalog @1610
Mar 19 – 26, 2026 · Antarctic Peninsula

Antarctic Peninsula · Mar 2026

228 m
Deepest dive
8:41
Longest dive
22
Dives
Sightings
2
Days between first and last sighting
7
Deepest dive on record
228 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Mar 19, 2026616 m2.1°C228 m
Mar 26, 2026217 m1.3°C185 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
Mar 19, 2026 — seafloor 616 m (measured), deepest dive 228 m (modelled)Mar 19Mar 26, 2026 — seafloor 217 m (measured), deepest dive 185 m (modelled)Mar 26

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

Dives

228 m
Deepest dive
8:41
Longest dive
22
Dives
45 m
Avg dive depth
2
Sightings
7
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0125250228 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (616 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 · Mar 19, 2026

measured
Seafloor depth
616 m
Sea-surface temperature
2.1°C
Distance from shore
6.0 km

Across the residency · 2 sightings

measured
Seafloor depth
217 m – 616 m
Sea-surface temperature
1.3°C – 2.1°C
Distance from shore
1.0 km – 6.0 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 2 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.