This picture was taken at the terrace of the Rudolfsturm Restaurant, located by the Skywalk Hallstatt on the mountain just behind Hallstatt, Austria, reachable by cable car. There are few walking trails there, as well as an ancient salt mine that is a big attraction. I was there after walk on a trail for half a day, and was enjoying my lunch while I was treated to this view of the Lake Hallstatt.
Amazing shot, amazing place! Tomas