Risa
Try Deep freeDeep
Risa
Try Deep freeDeep
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Lynn Canal & Stephens Passage

Darwin – Residency

69th sighting in Lynn Canal & Stephens Passage
Fluke of Darwin
Darwin Confirmed in the catalog @5304
Mar 11 – Sep 1, 2026 · Lynn Canal & Stephens Passage

Same Old Routes

March waters still hold their chill but the krill runs are starting up nicely.

99 m
Deepest dive
4:08
Longest dive
460
Dives
Sightings
37
Days between first and last sighting
174

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Mar 11, 202647 m5.8°C38 m
Mar 27, 202677 m4.9°C49 m
Mar 29, 202638 m5.0°C32 m
May 15, 202648 m7.7°C43 m
May 16, 202668 m7.7°C47 m
May 20, 2026110 m7.9°C88 m
Jul 8, 202672 m12.1°C44 m
Jul 23, 2026215 m13.4°C75 m
Jul 25, 2026309 m13.2°C55 m
Jul 27, 2026115 m13.0°C53 m
Jul 28, 2026143 m13.4°C16 m
Jul 29, 202659 m13.2°C40 m
Jul 30, 202674 m13.1°C53 m
Jul 31, 202660 m13.1°C21 m
Aug 1, 202616 m13.3°C14 m
Aug 2, 202652 m13.6°C48 m
Aug 3, 202664 m13.7°C32 m
Aug 4, 202681 m13.8°C33 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 11, 2026 — seafloor 47 m (measured), deepest dive 38 m (modelled)Mar 11Mar 27, 2026 — seafloor 77 m (measured), deepest dive 49 m (modelled)Mar 29, 2026 — seafloor 38 m (measured), deepest dive 32 m (modelled)May 15, 2026 — seafloor 48 m (measured), deepest dive 43 m (modelled)May 16, 2026 — seafloor 68 m (measured), deepest dive 47 m (modelled)May 20, 2026 — seafloor 110 m (measured), deepest dive 88 m (modelled)Jul 8, 2026 — seafloor 72 m (measured), deepest dive 44 m (modelled)Jul 23, 2026 — seafloor 215 m (measured), deepest dive 75 m (modelled)Jul 23Jul 25, 2026 — seafloor 309 m (measured), deepest dive 55 m (modelled)Jul 27, 2026 — seafloor 115 m (measured), deepest dive 53 m (modelled)Jul 28, 2026 — seafloor 143 m (measured), deepest dive 16 m (modelled)Jul 29, 2026 — seafloor 59 m (measured), deepest dive 40 m (modelled)Jul 30, 2026 — seafloor 74 m (measured), deepest dive 53 m (modelled)Jul 31, 2026 — seafloor 60 m (measured), deepest dive 21 m (modelled)Aug 1, 2026 — seafloor 16 m (measured), deepest dive 14 m (modelled)Aug 1Aug 2, 2026 — seafloor 52 m (measured), deepest dive 48 m (modelled)Aug 3, 2026 — seafloor 64 m (measured), deepest dive 32 m (modelled)Aug 4, 2026 — seafloor 81 m (measured), deepest dive 33 m (modelled)Aug 5, 2026 — seafloor 68 m (measured), deepest dive 58 m (modelled)Aug 6, 2026 — seafloor 102 m (measured), deepest dive 80 m (modelled)Aug 7, 2026 — seafloor 124 m (measured), deepest dive 93 m (modelled)Aug 8, 2026 — seafloor 80 m (measured), deepest dive 49 m (modelled)Aug 8Aug 9, 2026 — seafloor 83 m (measured), deepest dive 70 m (modelled)Aug 10, 2026 — seafloor 101 m (measured), deepest dive 47 m (modelled)Aug 11, 2026 — seafloor 66 m (measured), deepest dive 44 m (modelled)Aug 12, 2026 — seafloor 91 m (measured), deepest dive 83 m (modelled)Aug 13, 2026 — seafloor 78 m (measured), deepest dive 63 m (modelled)Aug 14, 2026 — seafloor 98 m (measured), deepest dive 19 m (modelled)Aug 15, 2026 — seafloor 89 m (measured), deepest dive 33 m (modelled)Aug 15Aug 16, 2026 — seafloor 101 m (measured), deepest dive 64 m (modelled)Aug 17, 2026 — seafloor 108 m (measured), deepest dive 99 m (modelled)Aug 18, 2026 — seafloor 110 m (measured), deepest dive 83 m (modelled)Aug 19, 2026 — seafloor 151 m (measured), deepest dive 30 m (modelled)Aug 20, 2026 — seafloor 123 m (measured), deepest dive 82 m (modelled)Aug 29, 2026 — seafloor 54 m (measured), deepest dive 45 m (modelled)Aug 30, 2026 — seafloor 28 m (measured), deepest dive 24 m (modelled)Aug 30Sep 1, 2026 — seafloor 133 m (measured), deepest dive 92 m (modelled)

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

Dives

99 m
Deepest dive
4:08
Longest dive
460
Dives
24 m
Avg dive depth
37
Sightings
174
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010099 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (108 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 · Aug 17, 2026

measured
Seafloor depth
108 m
Sea-surface temperature
15.7°C
Distance from shore
1.0 km

Across the residency · 37 sightings

measured
Seafloor depth
16 m – 309 m
Sea-surface temperature
4.9°C – 15.7°C
Distance from shore
1.0 km – 4.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 37 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.