Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Au'au Channel

HW-MN0440348 – Residency

9th sighting in Au'au Channel
Fluke of HW-MN0440348
HW-MN0440348 Confirmed in the catalog @13755
Feb 25 – Mar 30, 2026 · Au'au Channel

Warm Water, Many Springs

Cameras found me easy here—this channel just knows my shape.

35 m
Deepest dive
1:45
Longest dive
37
Dives
Sightings
4
Days between first and last sighting
33

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 25, 202634 m24.4°C23 m
Feb 25, 202642 m24.4°C28 m
Mar 30, 202638 m24.2°C33 m
Mar 30, 202642 m24.2°C35 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 34 m (measured), deepest dive 23 m (modelled)Feb 25Feb 25, 2026 — seafloor 42 m (measured), deepest dive 28 m (modelled)Feb 25Mar 30, 2026 — seafloor 38 m (measured), deepest dive 33 m (modelled)Mar 30Mar 30, 2026 — seafloor 42 m (measured), deepest dive 35 m (modelled)Mar 30

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

Dives

35 m
Deepest dive
1:45
Longest dive
37
Dives
16 m
Avg dive depth
4
Sightings
33
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255035 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (42 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 · Mar 30, 2026

measured
Seafloor depth
42 m
Sea-surface temperature
24.2°C
Distance from shore
2.0 km

Across the residency · 4 sightings

measured
Seafloor depth
34 m – 42 m
Sea-surface temperature
24.2°C – 24.4°C
Distance from shore
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 4 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.