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

HW-MN1308905 – Residency

3rd sighting in Antarctic Peninsula
Fluke of HW-MN1308905
HW-MN1308905 Confirmed in the catalog @154284
Feb 25 – Mar 6, 2026 · Antarctic Peninsula

Antarctic Peninsula · Feb – Mar 2026

184 m
Deepest dive
4:41
Longest dive
39
Dives
Sightings
3
Days between first and last sighting
10
Deepest dive on record
184 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Feb 25, 2026179 m1.9°C63 m
Mar 3, 2026253 m2.1°C184 m
Mar 6, 2026424 m2.3°C112 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
Feb 25, 2026 — seafloor 179 m (measured), deepest dive 63 m (modelled)Feb 25Mar 3, 2026 — seafloor 253 m (measured), deepest dive 184 m (modelled)Mar 3Mar 6, 2026 — seafloor 424 m (measured), deepest dive 112 m (modelled)Mar 6

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

Dives

184 m
Deepest dive
4:41
Longest dive
39
Dives
34 m
Avg dive depth
3
Sightings
10
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200184 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (253 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 3, 2026

measured
Seafloor depth
253 m
Sea-surface temperature
2.1°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
179 m – 424 m
Sea-surface temperature
1.9°C – 2.3°C
Distance from shore
1.0 km – 2.0 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 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.