Big mountain maneuvers such as highmarking (climbing steep slopes), boondocking (carving turning) and sidehilling (traversing steep slopes) are more adrenaline inducing aboard a high-powered machine. If you like speed and torque, ask for a snowmobile upgrade. Toby Creek Adventuress offers Arctic Cat M8 660cc wide-tracks, whereas White N’ Wild, SnowPeak Adventures and Banff Snowmobile Tours have potent, lightweight 550cc to 800cc Ski-Doos Revs. — Mark Horejsi