5Reykjadalur

Located 45 kilometers (28 miles) from Reykjavik, Reykjadalur is one of Iceland’s largest geothermal areas.

Translated, it means “Steam Valley,” which is exactly right! The official hot spring swimming hole, formed from an extinct volcano, is about a 45-minute to one-hour walk from the carpark. Fortunately, the walk is incredibly photogenic and includes waterfalls, boreholes, and many springs.