There are several youtube versions, I like best the one from Julia Migenes http://www.youtube.com/watch?v=Yyq42vthsfg
Noticably, the lyrics vary a lot - you can apparently add couplets that fit. The nub of the song is that a trip from Lucerne to the Rigi starts off easily enough to go barefoot, the hard climbing starts later.
Tolstoy built the song into one of his stories:
http://great-authors.albertarose.org/leo_tolstoy/Lucerne.htm