I am interested in this Neuhausen am Rheinfall boat trip. With a Swiss Travel Pass, how much do I need to pay for the boat trip?
Unfortunately there's no discount there. Please see:
All you need to know about traveling by train, bus or car in Switzerland.
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Swiss Travel Pass promotion: 25% discountAvailable until 11 December 2021. Book 11 months in advance. Free cancellation.https://shop.switzerlandtravelcentre.com/#/en/home.