Between May and September, Lausanne/Montreux is accessible from Geneva by CGN operated boat. The journey will take 3.5 and 4.5 hrs respectively, and Swiss pass is valid on those boats.
Lausanne has a well-established network of bus system and a useful funicular linking the train station, Old Town and Ouchy. The best way to enjoy the Old Town and the lakeside is to walk.
Like its sister town, you can get around Montreux by bus and of cuz by foot.


