If your trip to Kawayu Onsen is all locked in but your travel itinerary is a little on the empty side, let us give you a helping hand.Not too far from the city center, Nachiyama-oku-no-in is one spot you might like to put on your must-see list. If you still have room on that schedule, Sanseiganto-ji and Nachi-no-taki will keep you on the go too.