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

HW-MN0440972 – Residency

5th sighting in Au'au Channel
Fluke of HW-MN0440972
HW-MN0440972 Confirmed in the catalog @18412
Feb 26 – Mar 25, 2026 · Au'au Channel

Crowded Blue, Just Fine

Bodies everywhere in that channel, and I never once felt lost among them.

130 m
Deepest dive
4:44
Longest dive
48
Dives
Sightings
5
Days between first and last sighting
27
Deepest dive on record
130 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 26, 202666 m24.5°C48 m
Mar 2, 202690 m24.8°C71 m
Mar 4, 202676 m24.8°C34 m
Mar 19, 2026199 m24.8°C130 m
Mar 25, 2026102 m24.6°C87 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 26, 2026 — seafloor 66 m (measured), deepest dive 48 m (modelled)Feb 26Mar 2, 2026 — seafloor 90 m (measured), deepest dive 71 m (modelled)Mar 2Mar 4, 2026 — seafloor 76 m (measured), deepest dive 34 m (modelled)Mar 4Mar 19, 2026 — seafloor 199 m (measured), deepest dive 130 m (modelled)Mar 19Mar 25, 2026 — seafloor 102 m (measured), deepest dive 87 m (modelled)Mar 25

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

Dives

130 m
Deepest dive
4:44
Longest dive
48
Dives
27 m
Avg dive depth
5
Sightings
27
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150130 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (199 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 19, 2026

measured
Seafloor depth
199 m
Sea-surface temperature
24.8°C
Distance from shore
11.0 km

Across the residency · 5 sightings

measured
Seafloor depth
66 m – 199 m
Sea-surface temperature
24.5°C – 24.8°C
Distance from shore
2.0 km – 11.0 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 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).

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