Vesuv
It's not what you see, it's the place where I took the photo from: a little hill in Heiligenschwendi called "Vesuv". You see in the foreground left Chrinde or Krindenhof, then Lake Thun, Spiez, sunny spot between Krattigen and Hondrich. And what you could see behind the clouds would be the mountains Blüemlisalp and Doldenhorn.
