There are plenty of opportunities for cheap adventure in Switzerland after all the Alps are on our doorsteps. Once you have reached them hiking all day long is free, biking costs nothing (if you already have a bike). There are many places to swim for free at the lakes. Skiiing can be done at not too great a cost if you go to the smaller ski places and avoid the tourist traps. Adventure in Switzerland is there for the taking and it need to cost much money.