The Aare is the longest wholly Swiss river. It originates from the Oberaar glacier in the eastern Bernese Alps, flows through lakes Brienz and Thun, passes by the federal capital of Bern, is channelled into Lake Biel, follows the southern foot of the Jura range and finally flows into the Rhine at Koblenz, in north-western Switzerland. Passenger boats operate on the lakes as well as the river section from Biel to Solothurn.
Wherever the waters of the Jura tried to carve their way from the Jura folds into the Mittelland, deep gorges were carved out. The Areuse stream thunders through one of these gorges. This sometimes challenging trail affords plunging views into the natural spectacle. Even on hot summer days, a cool breeze blows.