ARAPAHOE BASIN SKI AREA, Colo (KKCO) It's called the double down pass and it's good for the 20-12-13 season as well as the 20-13-14 ski season. It costs $499, but not a bad deal when you hear a single-season pass is $299. The pass will only be available until December 31st. A-Basin is well known for it's long ski and snowboarding season that averages about 233 days.