There are more few more exhilarating extreme sport experiences than being dropped off on a remote mountain that looks as if no-one has ever set foot on before and racing down it off-piste. The place to do this in Europe is Zermatt, Switzerland, the best heli-skiing in the Alps, with three drop-off points accessed by pilots who know the terrain like their backyard. The slopes are not as extreme as those in Canada or Colorado, making them perfect for first timers, but even old hands will need a stomach for heights when they’re dropped near the top of 10,200ft-high Monte Rosa, with its stunning views of the snow covered valleys below. For all the dangers, the sport is well regulated in Switzerland and the top companies offer skilled guides and use only the most experienced pilots.