Risa
Try Deep freeDeep
Risa
Try Deep freeDeep
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Clarence Strait

Monarchy – Residency

34th sighting in Clarence Strait
Fluke of Monarchy
Monarchy Confirmed in the catalog @15171
May 29 – Sep 17, 2026 · Clarence Strait

New Water, Chatham Strait

All these years and Chatham Strait was still waiting for me—worth it.

173 m
Deepest dive
5:57
Longest dive
173
Dives
Sightings
14
Days between first and last sighting
111

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
May 29, 2026208 m9.0°C173 m
Jul 14, 202616 m14.2°C14 m
Aug 4, 2026126 m12.8°C96 m
Aug 9, 2026277 m12.8°C113 m
Aug 14, 2026198 m13.5°C85 m
Aug 22, 202613 m14.2°C12 m
Aug 25, 202610 m14.6°C9 m
Aug 26, 20264 m14.0°C4 m
Aug 27, 202642 m14.5°C36 m
Aug 28, 202676 m14.5°C52 m
Aug 28, 202623 m14.4°C16 m
Sep 3, 202655 m13.2°C44 m
Sep 6, 2026318 m13.4°C98 m
Sep 17, 202659 m11.5°C39 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
May 29, 2026 — seafloor 208 m (measured), deepest dive 173 m (modelled)May 29Jul 14, 2026 — seafloor 16 m (measured), deepest dive 14 m (modelled)Aug 4, 2026 — seafloor 126 m (measured), deepest dive 96 m (modelled)Aug 9, 2026 — seafloor 277 m (measured), deepest dive 113 m (modelled)Aug 9Aug 14, 2026 — seafloor 198 m (measured), deepest dive 85 m (modelled)Aug 22, 2026 — seafloor 13 m (measured), deepest dive 12 m (modelled)Aug 25, 2026 — seafloor 10 m (measured), deepest dive 9 m (modelled)Aug 25Aug 26, 2026 — seafloor 4 m (measured), deepest dive 4 m (modelled)Aug 27, 2026 — seafloor 42 m (measured), deepest dive 36 m (modelled)Aug 28, 2026 — seafloor 76 m (measured), deepest dive 52 m (modelled)Aug 28Aug 28, 2026 — seafloor 23 m (measured), deepest dive 16 m (modelled)Sep 3, 2026 — seafloor 55 m (measured), deepest dive 44 m (modelled)Sep 6, 2026 — seafloor 318 m (measured), deepest dive 98 m (modelled)Sep 6Sep 17, 2026 — seafloor 59 m (measured), deepest dive 39 m (modelled)

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

Dives

173 m
Deepest dive
5:57
Longest dive
173
Dives
22 m
Avg dive depth
14
Sightings
111
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200173 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (208 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 · May 29, 2026

measured
Seafloor depth
208 m
Sea-surface temperature
9.0°C
Distance from shore
2.0 km

Across the residency · 14 sightings

measured
Seafloor depth
4 m – 318 m
Sea-surface temperature
9.0°C – 14.6°C
Distance from shore
1.0 km – 3.0 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 14 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.