Tourists walking in the ice grotto inside Rhone Glacier, Gletsch, Canton of Valais, Switzerland, Europe

Rhone Glacier covered with white blankets to prevent extreme melting due to climate change, Gletsch, Canton of Valais, Switzerland, Europe

Rhone Glacier and glacial lake at its base in summer, aerial view, Gletsch, Canton of Valais, Switzerland, Europe

Ice tongue of Rhone Glacier in summer, Gletsch, Canton of Valais, Switzerland, Europe

Twisting roads of the Furka and Grimsel Alpine Passes meet at the hamlet of Gletsch, Canton of Valais, Switzerland, Europe

Glacial lake and Rhone Glacier partially protected by blankets to slow melting, Gletsch, Canton of Valais, Switzerland, Europe

Aerial panoramic of Rhone Glacier and glacial lake at its base, Gletsch, Canton of Valais, Switzerland, Europe

Gletsch with Rhone River, Grimsel and Furka Pass Roads, Canton of Valais, Switzerland, Europe

Village and train station of Gletsch, steam train and steam lokomotive of Furka steam mountain railway, Wallis, Valais, Switzerland