People run during the sauna marathon near Otepaa, Estonia on February 2, 2019. Participants have to track down, locate and visit designated saunas in the Otepaa area as fast as possible during the event. The team that completed all of the saunas in the shortest time wins. (Photo by Ints Kalnins/Reuters)





A woman leaves sauna during the sauna marathon in Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





People leave sauna during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





People leave sauna during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





Women take a dip in the cold water during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





A man looks on during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





People enjoy open-air hot bath during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





A woman runs during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)





A woman leaves sauna during the sauna marathon near Otepaa, Estonia on February 2, 2019. (Photo by Ints Kalnins/Reuters)