Der Hintersee in Ramsau. Ramsau is a German municipality in the Bavarian Alps, pop.: ~1,800. It’s located on the Königssee in the Berchtesgadener Land in Bayern (Bavaria), Southern Germany, 35 km south of Salzburg/Austria and 150 km from München (Munich). Notable sights include the 3rd-highest mountain in Germany called the Watzmann, Lake Hintersee and the village’s famous church.