Oberhofen Castle, Oberhofen village, Interlaken, Switzerland
How to reach Oberhofen Castle?
Can be easily reached from Thun and Interlaken - once you reach the Oberhofen village you will need to than take a boat to Oberhofen, Ländte next to the Castle.
Do check the official website for details - https://www.schlossoberhofen.ch/de/information/besucherinfos