When you're ready to take a breather from the rigors of sightseeing, find a shady patch to sit at Lake Kizaki. Bring some nibbles and a good book ... Whatever helps you unwind!
When you've spent a bit of time at this Omachi body of water, why not make your way to Hakuba Sanosaka Ski Resort, Omachi Onsen-kyo, and Lake Aoki? They're not very far from Lake Kizaki and also a hit with many tourists.