Skiing off piste offers some of the most memorable experiences on snow: the exhilaration of untouched powder, the solitude and beauty of the mountains, and a glowing feeling of self-reliance and achievement. At some point every skier begins to feel limited by the terrain offered by groomed runs, and tempted by the expanses of snow off piste.

More ... (http://www.ifyouski.com/Technique/Alpineskiing/Offpiste/)

Some very good tips for off-piste skiing there. :D