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

HW-MN0440145 – Residency

7th sighting in Au'au Channel
Fluke of HW-MN0440145
HW-MN0440145 Confirmed in the catalog @12964
Mar 19 – 25, 2026 · Au'au Channel

March in the Channel

Bright, shallow, crowded with company — this stretch never gets old.

91 m
Deepest dive
4:11
Longest dive
50
Dives
Sightings
3
Days between first and last sighting
6

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Mar 19, 2026199 m24.8°C91 m
Mar 25, 202662 m24.6°C55 m
Mar 25, 202658 m24.4°C40 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 199 m (measured), deepest dive 91 m (modelled)Mar 19Mar 25, 2026 — seafloor 62 m (measured), deepest dive 55 m (modelled)Mar 25Mar 25, 2026 — seafloor 58 m (measured), deepest dive 40 m (modelled)Mar 25

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

Dives

91 m
Deepest dive
4:11
Longest dive
50
Dives
27 m
Avg dive depth
3
Sightings
6
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010091 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.

Unlock with Risa Deep

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 · 3 sightings

measured
Seafloor depth
58 m – 199 m
Sea-surface temperature
24.4°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 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.