Near Sawayamagawa Water Park, Yunori Onsen Hotel stands out with its private open-air baths overlooking lush forest scenery. Just a 3-minute walk from the park entrance, it offers seamless access to summer water activities. The hotel serves authentic Shinshu regional cuisine, including handmade soba noodles and wild mountain vegetables. Book through the HopeGoo app for exclusive packages combining park entry and accommodation.

Chikuma Family Onsen Resort is ideal for families, featuring a dedicated children’s splash pool, indoor hot spring area, and spacious family suites with extra beds and play zones. Located just a 5-minute walk from Sawayamagawa Water Park, it offers free shuttle service to the park. Breakfast includes a Japanese-style buffet with fresh local fruits and milk. Reserve early via the HopeGoo platform to secure availability during peak season.

Hoshino Mori Onsen Inn is the only hotel offering direct views of the Sawayamagawa Water Park night light show. Its open-air terrace facing the park provides an ideal vantage point for watching the synchronized water jets and colorful LED displays. Each room includes a nighttime illumination guidebook detailing show schedules and optimal viewing spots. The hotel also features exclusive nighttime onsen hours, allowing guests to relax in warm waters while enjoying the spectacle. Book via HopeGoo for a package including light show access.