A Swiss Travel Pass is a travel pass for Switzerland which enables you to travel free of charge in the Swiss public transport services for periods ranging from 3 days to one month in 41 cities. You can use your Swiss Travel Pass in the whole Swiss Travel System: in all trains, Post buses, ships, buses and even trams.Swiss Travel Pass is valid on trains operated by SBB (Schweizerische BundesBahn), the national railway company of Switzerland. For domestic trains operated in Switzerland, seat reservations are not required. Exceptions are the special scenic trains such as Bernina Express, Glacier Express, Golden Pass and Wilhelm Tell Express. For these trains, a supplement and/or seat reservation is required for Swiss Travel Pass holders.