The Thingvallasund Swimming Event

The Thingvallasund swimming event is a 5 km. open water swim in 10°C water.

Lake Thingvallavatn is the largest natural lake in Iceland. It covers an area of 32.3 square miles and is 334 ft. above mean sea level. It is 374 ft. deep at its deepest point.
For more information about swimming in Lake Thingvallavatn, please send your inquiries to: thingvallasund(att)

The dotted line shows the path of the swim event.