Silfra

Fissure that is part of the boundary between North American and Eurasian geological plates.

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What you'll see (3)

Brown TroutSalmo truttaseen 19× near here

Thingvallavatn CharSalvelinus thingvallensisseen 2× near here

Icelandic Threespine SticklebackGasterosteus islandicusseen 1× near here

Planning a trip

8–12 days

worth going for

Long haul, usually two flights.

11,469km from Singapore — about 24h each way, so two of those days are travel. the only logged site in the area.

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Moon and tides

Waning gibbous

71% lit · day 20 of the lunar month

Neap tides

Neap tides — the smallest range of the month, so the weakest currents. Easy conditions and usually the clearest water, though a drift site may barely drift.

New 10 Oct Full 26 Oct

Phase computed here, not fetched. This is the spring/neap cycle, which sets how hard the water moves — not a tide table: no free source publishes high and low water for Southeast Asian reefs, and the range peaks a day or two after the moon does, by an amount that varies with the coast. For times on the day, ask the operator.

Getting there

~38h 36m

door to water, each way · 4 legs

FlightKirkwall, Orkney (KOI)~16h 57mFlight time plus the airports at both ends. A connection adds to it.Find flights →
Transferthe jetty~19h 9mFor Scapa Flow and the scuttled German fleet.Directions →
Ferrythe crossing~2hAt this distance the last stretch is a scheduled crossing rather than a dive boat, so book it before the flight — a missed sailing usually costs a day. Which crossing it is has been worked out from the distance and not from a timetable; ask the operator.
Dive boatSilfra~30 minThen the dive boat out from the island.

📍 Silfra on Google Maps 🧭 Route from Kirkwall, Orkney

Times marked ~ are estimated from straight-line distance and will be roughly right at best. The road legs are the ones Google Maps answers properly; it will not plan the ferry or the dive boat at all. A dive site's coordinates put a pin in open water, so the map link drops you on the site, not on a jetty.

Details

Island: Öxarárhólmi
Country: Iceland
Marks: 64°15.311'N 21°7.016'W
Position: 64.2552, -21.1169

Where it is

Loading the map…

Sightings and photographs from iNaturalist contributors, research-grade records within 6km, under Creative Commons licences. Counts are what divers and snorkellers have bothered to log — a common fish with few records is common all the same.