826-717 - Aerial photography of an esker, a sandy ridge formed by subglacial deposits of sediment in the last Ice Age, in Manitoba, Canada, North America
832-367257 - Diver, subglacial diving, ice diving, in the frozen Black Sea, a rare phenomenon, last time it occured in 1977, Odessa, Ukraine, Eastern Europe
832-367258 - Preparations for subglacial diving, ice diving in the frozen Black Sea, a rare phenomenon which last occured in 1977, Odessa, Ukraine, Eastern Europe