The castle is located on the shore of Lake Tunn. The Swiss national heritage. The first dowry was given to the daughter of the owner of the land of Oberhofen in the 13th century. During the next few hundred years, the castle was built between various owners. The architectural style of the castle is mixed with the taste and fashion of the masters, from medieval style to Bern Baroque to Roman style. The castle's iconic water tower is deep into Lake Tuen, from which you can see the scenery of Tuen Cave in a panoramic view. Not only the water tower, but from every window of the castle, it is a pleasant landscape.