Although you will walk 3 km from the center of Interlaken to reach this castle, it is a castle that is really worth a visit. The history of this ancient castle dates back to the beginning of the twelfth century AD. Some sources say that these ruins inspired Lord Byron to write his romantic poem Manfred. It is a beautiful castle in which you find forts, gates, stairs and windows, and there are no ceilings in the place as the building is outdated. But outside there are vast green spaces full of trees and distinctive plants. Do not miss out on the opportunity to visit this castle if you are in the city.