ibex above piz nair mountain range with lake in the alps, engadine, switzerland

melting switzerland aerial view backgrounds beauty in nature bernina range pass lake climate change crevasse lagoon europe european alps culture glacier graubunden canton grison hill horizontal journey landscape mountain climbing peak pontresina sky majestic snowcapped swiss tourism travel vacations valley destinations st moritz engadine piz nair engadin outdoors panoramic sunny sunrise ibex goat animal mammal