Archaisch – Residency
30th sighting in IcelandArchaisch @91259
Jul 24 – Oct 28, 2025 · Iceland
Iceland · Jul – Oct 2025
137 m
Deepest dive
6:27
Longest dive
433
Dives
- Sightings
- 29
- Days between first and last sighting
- 96
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 24, 2025 | 149 m | 10.9°C | 50 m |
| Jul 25, 2025 | 111 m | 10.9°C | 87 m |
| Jul 26, 2025 | 121 m | 10.7°C | 49 m |
| Jul 26, 2025 | 161 m | 10.7°C | 43 m |
| Jul 30, 2025 | 103 m | 10.8°C | 34 m |
| Aug 1, 2025 | 121 m | 10.6°C | 35 m |
| Aug 16, 2025 | 149 m | 10.0°C | 75 m |
| Aug 18, 2025 | 136 m | 10.2°C | 81 m |
| Aug 19, 2025 | 136 m | 10.2°C | 112 m |
| Aug 20, 2025 | 42 m | 10.3°C | 28 m |
| Aug 22, 2025 | 149 m | 10.2°C | 102 m |
| Aug 24, 2025 | 149 m | 10.2°C | 112 m |
| Sep 8, 2025 | 101 m | 9.1°C | 33 m |
| Sep 9, 2025 | 149 m | 9.3°C | 82 m |
| Sep 15, 2025 | 176 m | 8.7°C | 72 m |
| Sep 22, 2025 | 167 m | 7.4°C | 114 m |
| Oct 5, 2025 | 168 m | 6.3°C | 106 m |
| Oct 8, 2025 | 95 m | 6.0°C | 84 m |
Seafloor and sea temperature measured · ✳ dives modelled ·
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
137 m
Deepest dive
6:27
Longest dive
433
Dives
27 m
Avg dive depth
29
Sightings
96
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (174 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Oct 19, 2025
measured- Seafloor depth
- 174 m
- Sea-surface temperature
- 6.5°C
- Distance from shore
- 4.0 km
Across the residency · 29 sightings
measured- Seafloor depth
- 42 m – 215 m
- Sea-surface temperature
- 5.6°C – 10.9°C
- Distance from shore
- 1.0 km – 8.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 29 catalogued encounters on Happywhale.
- Jul 24, 2025
- Jul 25, 2025
- Jul 26, 2025
- Jul 26, 2025
- Jul 30, 2025
- Aug 1, 2025
- Aug 16, 2025
- Aug 18, 2025
- Aug 19, 2025
- Aug 20, 2025
- Aug 22, 2025
- Aug 24, 2025
- Sep 8, 2025
- Sep 9, 2025
- Sep 15, 2025
- Sep 22, 2025
- Oct 5, 2025
- Oct 8, 2025
- Oct 10, 2025
- Oct 10, 2025
- Oct 15, 2025
- Oct 16, 2025
- Oct 16, 2025
- Oct 17, 2025
- Oct 18, 2025
- Oct 19, 2025
- Oct 25, 2025
- Oct 27, 2025
- Oct 28, 2025