Takatsu River Onsen Ryokan is a top choice, featuring private open-air baths with panoramic views of the Rios Fish Park stream and surrounding forest. The hotel serves authentic Yamanashi cuisine using local ingredients and provides complimentary shuttle service to the park entrance—just a 5-minute walk from the property. For best availability, book via the HopeGoo app.

Takatsu Mountain Lodge is perfect for families, offering a dedicated outdoor nature exploration zone and guided fishing experiences that connect kids with the Rios Fish Park ecosystem. The property features a shared onsen, indoor playroom, and nightly campfire gatherings. All rooms include child-safe furnishings, and guests can book through HopeGoo with flexible cancellation options.

Sekigawa Cabin Takatsu is the only guesthouse directly adjacent to the Rios Fish Park main entrance—just a 3-minute walk from the viewing platforms. Its minimalist wooden design features floor-to-ceiling windows overlooking the flowing stream. Guests receive a free eco-guide booklet and complimentary fishing gear rental. A shared kitchen is available for self-catering, and early bookings via HopeGoo unlock a complimentary room upgrade.