Aerial view of frozen lake Lago Bianco at Bernina mountain pass covered with snow at sunrise, Engadine, Graubunden, Switzerland, Europe

photography vertical color image travel destinations travel switzerland europe bernina pass mountain lago bianco lake water graubunden engadin mountain pass no people outdoors sunrise dawn aerial view snow winter landscape copy space cloud sky dramatic sky wintry cold cold temperature chill chilly travel destination tourist destination tourist destinations morning twilight outdoor outside nobody no one no person mountains lakes pond ponds natural