They call cross-country skiing in Rusutsu a "Ski Fitness Session". We're inclined to agree, it certainly does offer an aerobic workout. Salomon skis are used and the course takes you around Rusutsu Resort - through the trees and the snowy mountains as a constant backdrop. The course will take you two and a half hours and tours head out at 09.30 and 13.30. Of course, equipment hire, instruction and guiding are both included.