From a distance, it almost looks like dancing. With rhythm and elegance, the skier emerges again and again from the immaculate white expanse, only to disappear again immediately up to his waist in a cloud of snow. In the deep powdery snow of the “7th Heaven” area of Whistler Blackcomb, the skier must feel free and weightless right now. When it has snowed heavily in western Canada’s Coast Mountains, this area on Blackcomb Mountain certainly is like heaven on earth for skiers and snowboarders. Blackcomb is one half, Whistler Mountain the other, of North America’s largest ski area. 27 lifts open …