An exciting hiking tour via the old Sense crossing near the ruin of Grasburg Castle, the largest castle ruin in the Canton of Bern. The tour also takes you to the wonderful vantage points in the Albligen Hills, west of the deeply cut Sensegraben.
From the Sihlsprung up to the entrance to metropolitan Zürich, the valley is a mixture of urban and rustic landscapes. The origin of the Sihl River is to be found on the 2283-meter Drusberg. The Sihl flows through the Sihl Lake near Einsiedeln and meanders through the Sihl Valley (Sihltal) towards Zürich.