Time Out says
The Swiss Chocolate Train is a joint venture of GoldenPass Services and Cailler-Nestlé. Ride in first-class comfort in a "Belle Epoque" Pullman car, vintage 1915 and/or the modern panorama car affording stunning views of the vineyards surrounding Montreux and medieval Gruyères.
The journey will show riders the production of this famous Swiss cheese as well as the creation of Swiss chocolate the legendary "Maison Cailler" in Broc.
Read more great train experiences in Switzerland here