Embedded within an imposing backdrop of mountains, the deeply-blue Lake Thun lies on the northern periphery of the Alps, between the Bernese Oberland towns of Thun and Interlaken. Lake Thun is especially popular amongst sailors and windsurfers who appreciate the prevailing light breeze. Numerous swimming and shore areas invite visitors to cool off.
Erosion caused the mountain to collapse and the vast, pale yellow and reddish rock basin to form, which becomes bigger every year. From the Grabenrad or the Illhorn (2,716 m) there are "fear inspiring" yet stunning views down into the Rhone valley.
A natural spectacle in a class of their own are the 600m long Engstligen waterfalls. Under preservation since 1948, these are the second longest falls in Switzerland.
The Lac de Neuchâtel lies at the southern foot of the Jura mountains. The northern shore of the lake is characterised by vineyard landscapes, the southern shore by the largest marshland and bird paradise in Switzerland. Boat cruise enthusiasts can experience all three lakes at the periphery of the Jura – lakes Biel, Murten and Lac de Neuchâtel – on a leisurely, four-hour cruise.