When you're ready to get away from ticking things off your to-do list, head for at Lake Shikaribetsu. Bring some nibbles and a good book ... This is the place to unwind!
To explore this body of water, find your way to Hokkaido Prefecture. There are loads of other things to see in this area, including Mt. Higashi Nupukaushi-Nupuri, Mount Hakuun, and Minerva Museum of Art.