Interlaken is situated on a strip of land between the Lakes Thun and Brienz, and is considered the cradle of Swiss Alpine tourism. From Interlaken-West the river Aare flows like a canal to Lake Thun and connects it with the neighbouring Lake Brienz.

The trip with the steamboat takes you to the most important stations. Such as the BEATUS station on the northern shore, from where a rather steep path leads up to the Beaten Hill and the Beatus Caves.

The round trip continues to various boat stations. Some stops belong to small places, and others to those where tourism has already moved in. On the less sunny southern shore is Spiez and crossing the lake is the small town of Gunten and later the sea castle Oberhofen.

At the end of the lake is the town of Thun, surrounded from an incomparable panorama of the Alps and whose rich history speaks of lake and river.