Reykjanes sits where the North Atlantic meets Iceland's volcanic interior, and that collision shapes every dive here. The peninsula offers both ocean sites and freshwater or brackish fissures, so conditions vary considerably across the six sites in the database. Garður draws divers to kelp forests and mixed algae gardens, with species such as Atlantic wolffish and harbour seal. Bjarnagjá is a lava fissure where fresh groundwater meets seawater, creating a brackish environment. Lake Kleifarvatn, the largest lake on the peninsula, sits directly atop the Mid-Atlantic Ridge and includes an artificial reef structure. Water temperatures peak in late summer and drop to just above freezing in winter, so a drysuit is necessary year-round.





Monthly water temperature across Reykjanes's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature peaks in late summer and falls to its coldest in late winter and early spring. The swing across the year is moderate, but the water never truly warms, so a drysuit is required in every month. Ocean sites are subject to surge, particularly inside cave structures at Minni-Vatnesleysa.
Water temperature around Reykjanes ranges from about 4°C in February to 11°C in August, based on satellite sea-temperature data for its dive sites.
With water around 4–11°C, a drysuit works in Reykjanes year-round.
Fin maps 6 sites in Reykjanes (6 scuba diving sites).
3 more sites to explore