Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
North Pacific
Fluke of Herc (BC)
Herc (BC) Confirmed in the catalog @32104
May 18, 2026

North Pacific · May 2026

Modelled · this session
31 m
Deepest dive
1:19
Longest dive
8
Dives

Dive metrics are modelled within real depth limits — not measured

Dive profile

modelled
0255031 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (293 m) and the published dive-behaviour distribution. Modelled, not measured.

Measured · the place

Where this happened

measured
293 m
Seafloor depth
Sea-surface temp
2.0 km
From shore

Source · opentopodata/gebco2020 · erddap/ncdcOisst21Agg · pacioos-erddap/dist2coast_1deg