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Hot rocks and cold feet at the European Sauna Marathon

Ints Kalnins / Reuters

Participants run between saunas during the European Sauna Marathon in Otepaa, Estonia, on Feb. 10, 2013.

Raigo Pajula / AFP - Getty Images

People take part in the European Sauna Marathon on Feb. 10, 2013.

Published at 11:54 a.m. ET: Around 600 participants in 150 teams took part in the European Sauna Marathon in Estonia on Monday. The aim of the competition is to visit 22 saunas and to jump into nine ice holes in the shortest possible time.

-- Agence France-Presse, Reuters

Ints Kalnins / Reuters

A man leaves a sauna during the European Sauna Marathon on Feb. 10, 2013.

Ints Kalnins / Reuters

People run to a sauna during the European Sauna Marathon on Feb. 10, 2013.

Ints Kalnins / Reuters

Participants relax after a sauna bath during the European Sauna Marathon on Feb. 10, 2013.