Interlaken is situated in between Thunersee and Brienzsee. A great town to stay and take small day trips to the beautiful country sides around. Specially places around the lakes like Spiez, Thun, Isaldwald. Also places in the valley like Gimmeldwald, Murren, Wangen, Lauterbrunnen…the list goes on.
A lot of opportunities to hike the Alps and get awesome views of the valley.
Interlaken Ost has most of the trains going to these places…