Kids fourteen and under ski free at Arapahoe Basin from November 30 through December 19, with no purchase necessary and no strings attached. The ski area, better known for its extreme terrain and its base-area party scene, went all out this season to make the place more family-friendly with its new three-story, 7,100-square-foot, $2.3 million Kids Center, as well as a more developed system of beginner runs and family fun zones near the base of the mountain.