Interlaken is in the Bernese Oberland, in central Switzerland, on a narrow plain between two lakes: the Thunersee to the west and the Brienzersee to the east. The name comes from Latin and means "between lakes." To the south begin the valleys that lead to the massif of the Eiger, the Mönch and the Jungfrau, three mountains that give the region its name.
The town grew as a summer resort in the 19th century, with hotels along the Höheweg and views of the Jungfrau from the Höhematte, a lawn where construction is not allowed. Boats depart from there on both lakes and the trains of the Berner Oberland-Bahn, which climb into the valleys in under an hour.
Grindelwald, at 1,034 m, lies at the foot of the Eiger's north face. It is the base for the Jungfraujoch, whose station is at 3,454 m, and for viewpoints at First, Männlichen and Kleine Scheidegg. Lauterbrunnen occupies a valley of rock walls, with the Staubbachfall and the Trümmelbachfälle; above it are Wengen and Mürren, car-free villages, and the Schilthorn at 2,970 m.
German is spoken, with the Bernese Swiss-German dialect; English is widely used in tourism. The currency is the Swiss franc, and Switzerland does not use the euro.
This destination brings together 3 cities: Interlaken, Grindelwald, Lauterbrunnen.