A group of naked people in front of an ice crevasse, around 600 people are posing for Spencer Tunick and Greenpeace on the Aletsch Glacier to protest about climate change, Aletsch Glacier, Valais, Switzerland

europe adults people mountains caucasian appearance ice protest men landscape crowd nature incidental people crevasse wallis large group of people travel people in the background demonstration european alps scenics women day switzerland valais full length european ethnicity outdoors travel destination canton of valais glacier naked aletsch glacier standing person mountain