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Iceland

Halfandhalf – Residency

61st sighting in Iceland
Fluke of Halfandhalf
Halfandhalf Confirmed in the catalog @82722
Jun 15 – Sep 5, 2026 · Iceland

Northeast Shelf, Full Tilt

Bays kept filling, boats kept finding me, all mid-summer long.

61 m
Deepest dive
2:26
Longest dive
223
Dives
Sightings
19
Days between first and last sighting
82

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 15, 202630 m10.8°C24 m
Jun 17, 202642 m7.4°C37 m
Jun 18, 202621 m8.4°C18 m
Jun 21, 202631 m10.2°C21 m
Jun 22, 202640 m10.4°C32 m
Jun 22, 202621 m10.4°C17 m
Jul 1, 202638 m10.9°C32 m
Jul 2, 20261 m11.1°C1 m
Jul 3, 202646 m11.1°C28 m
Jul 4, 202650 m11.1°C41 m
Jul 5, 202656 m11.1°C29 m
Jul 6, 202636 m11.1°C33 m
Jul 7, 202633 m10.5°C24 m
Jul 8, 202619 m10.4°C17 m
Jul 9, 202632 m10.4°C25 m
Jul 10, 202652 m10.4°C21 m
Jul 23, 202622 m11.2°C18 m
Aug 19, 202682 m8.3°C61 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
Jun 15, 2026 — seafloor 30 m (measured), deepest dive 24 m (modelled)Jun 15Jun 17, 2026 — seafloor 42 m (measured), deepest dive 37 m (modelled)Jun 18, 2026 — seafloor 21 m (measured), deepest dive 18 m (modelled)Jun 21, 2026 — seafloor 31 m (measured), deepest dive 21 m (modelled)Jun 22, 2026 — seafloor 40 m (measured), deepest dive 32 m (modelled)Jun 22Jun 22, 2026 — seafloor 21 m (measured), deepest dive 17 m (modelled)Jul 1, 2026 — seafloor 38 m (measured), deepest dive 32 m (modelled)Jul 2, 2026 — seafloor 1 m (measured), deepest dive 1 m (modelled)Jul 3, 2026 — seafloor 46 m (measured), deepest dive 28 m (modelled)Jul 3Jul 4, 2026 — seafloor 50 m (measured), deepest dive 41 m (modelled)Jul 5, 2026 — seafloor 56 m (measured), deepest dive 29 m (modelled)Jul 6, 2026 — seafloor 36 m (measured), deepest dive 33 m (modelled)Jul 7, 2026 — seafloor 33 m (measured), deepest dive 24 m (modelled)Jul 7Jul 8, 2026 — seafloor 19 m (measured), deepest dive 17 m (modelled)Jul 9, 2026 — seafloor 32 m (measured), deepest dive 25 m (modelled)Jul 10, 2026 — seafloor 52 m (measured), deepest dive 21 m (modelled)Jul 23, 2026 — seafloor 22 m (measured), deepest dive 18 m (modelled)Jul 23Aug 19, 2026 — seafloor 82 m (measured), deepest dive 61 m (modelled)Sep 5, 2026 — seafloor 125 m (measured), deepest dive 51 m (modelled)

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

Dives

61 m
Deepest dive
2:26
Longest dive
223
Dives
13 m
Avg dive depth
19
Sightings
82
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010061 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (82 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.

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Place

Where this happened · Aug 19, 2026

measured
Seafloor depth
82 m
Sea-surface temperature
8.3°C
Distance from shore
2.0 km

Across the residency · 19 sightings

measured
Seafloor depth
1 m – 125 m
Sea-surface temperature
7.4°C – 11.2°C
Distance from shore
1.0 km – 20.0 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 19 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).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.