Diver, ice-diving, in Lake Baikal, Olkhon island, Siberia, Russia

adventure air aquatic baikal being beings blue bodies body cold coldness cool coolness dive diver diver divers dives diving extreme extremely freeze freezes freezing fresh fresh water freshwater frost froze frozen human humans ice ice diving iced in island lake lake lakes light nature of olkhon one oxygen people person persons photo photografie photos russia russian scuba separate separately shape shaped shapes shot siberia siberian single singly soft sport sports tank tanks turquoise underwater up water waters winter wintertime wintery wintry