This is a popular day excursion but opting to stay the night has its advantages: one feels like one owns the mountain and the silence, broken only by the clamoring jackdaws, is immeasureable. Open from June till end of October.
How to get there:
Drive or take public transportation to Brienz, ride the mountain train to Rothorn, by car or Swiss Post Bus to Sörenberg, Sörenberg - Rothorn by aerial cable car.
Romantics will be fascinated by the sunset and the unique ambiance.