Tickets can be purchased at door.
Winter hours (Dec 1-Feb 28): 9:00-15:45
Spring hours (Mar 1-Mar 31): 8:30-16:30
Summer hours (Apr 1-Oct 31): 8:15-16:45
Fall hours (Nov 1-Nov 30): 8:30-15:45
The hours may vary from time to time, please see check the official website for the most up to date schedule:
http://usuzan.hokkaido.jp/