The Vaudoise town of Vallorbe lies in a valley basin of the river Orbe, directly on the French border. An inconspicuous chalet is nestled against the slope above Vallorbe. It is the disguised entrance to the fortress "Pré-Giroud".
The Swiss part of the Jacob's Trail offers highlights on the part of the trail that coincides with the language border. The stretch Schwarzenburg-Fribourg includes the over 600-year-old "Frybourgstrass," a path that leads through forests and over streams, past castle ruins, chapels and shrines.
Six courses of various levels of difficulty, ranging in height from 2 to 25 metres, can be completed by making use of climbing belts, sliding ropes and vines (lianas).