We went up on the cog railway from Vitznau and came back on the alternative route to Goldau. Both journeys were completely free with our Swiss Flexi Pass. We were really surprised that this trip was not charged at half price, or marked as a "day used" on our pass, but the staff were certain, so this is worth knowing.
We got there very cheaply using the train service from Lucerne to Brenner, changing at Kussnacht for the frequent number 2 bus. On the way back, the "blue" train took us back to the same railway line at Goldau, making a very pleasant and round trip.
The views going up and coming down we're breathtaking - both of lake Licerne and Lake Zug. The Cafe at the top was reasonably priced with good food and coffee. Not a lot to do at the top, but the Alpine views at 6,000 feet will use up a lot of your camera memory.
We'll worth it, and nice to find something in Switzerland which is very reasonably priced.
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