walensee lake of walen with churfirsten mountain range in background. walenstadt, switzerland

active activity adventure alpine alps appenzell background blue churfirsten clouds cover environment europe gallen heidiland hiking idyllic lake landscape majestic mount mountain nature outdoors postcard range sargans sarganserland scenic season sightseeing skiing sky snow sport swim swiss switzerland tourism tranquil travel vacation view walen walensee walenstadt water winter