I went on a skidoo trip when I was there last year - half the fun was the ride there in a jeep driven my one of the locals. He was powersliding all over the place up the hill.
Maria,
we had to follow a guide, I had a skidoo, my mate had one too, but as I said it great value for money, and great fun, I did'nt realise just how fast they go, and they had heated handle bars to keep your hand warm (posh ha)