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

CRC-20863 – Residency

8th sighting in Au'au Channel
Fluke of CRC-20863
CRC-20863 Confirmed in the catalog @79875
Feb 7 – Mar 5, 2026 · Au'au Channel

Au'au Channel · Feb – Mar 2026

38 m
Deepest dive
1:57
Longest dive
22
Dives
Sightings
3
Days between first and last sighting
26

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Feb 7, 202645 m25.4°C38 m
Feb 27, 202661 m24.7°C36 m
Mar 5, 202634 m24.7°C29 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 7, 2026 — seafloor 45 m (measured), deepest dive 38 m (modelled)Feb 7Feb 27, 2026 — seafloor 61 m (measured), deepest dive 36 m (modelled)Feb 27Mar 5, 2026 — seafloor 34 m (measured), deepest dive 29 m (modelled)Mar 5

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

Dives

38 m
Deepest dive
1:57
Longest dive
22
Dives
19 m
Avg dive depth
3
Sightings
26
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255038 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (45 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 · Feb 7, 2026

measured
Seafloor depth
45 m
Sea-surface temperature
25.4°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
34 m – 61 m
Sea-surface temperature
24.7°C – 25.4°C
Distance from shore
2.0 km – 4.0 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.