Lake Nojiri is a lovely place to enjoy some time away from the fast pace of everyday life. See if any water activities are available here, or just soak up the serene ambiance.
This body of water is located in Shinano. Once you've seen everything you can at Lake Nojiri, head to nearby Madarao Kogen Ski Resort, Myoko Kogen, and Akakura Onsen Ski Area.