Instead of taking the bus from Montreux to Chillon Castle, it's much nicer to walk there on the lovely lakeside promenade.
Trail: easy • 1 hour • 3.9 km • See trail map.
The path is always right on the lakeshore, with beautiful fantastic views of Lake Geneva. The path is lined with many sculptures, including the popular circle bench photo spot.
If you want a longer walk, the full path stretches from Port du Basset, at the north edge of Montreux, to Port de Villeneuve, south of Chillon Castle.