Harukasui Onsen Hotel is an ideal choice, just a 8-minute walk from Yakushinuma Water Park. The hotel features indoor and outdoor onsen pools, kids' splash zones, and spacious family suites with views of the surrounding greenery. Complimentary shuttle service runs daily between the park and hotel, making family visits seamless.

For exclusive rates and room upgrades, book through the HopeGoo app to secure your stay early.

Harukawa Riverside Resort Hotel provides the most convenient access, with the main park entrance just a 3-minute walk away. The hotel features a dedicated parking area and 24-hour self-check-in kiosks, along with complimentary children's floatation gear rental for families. Many upper-floor rooms offer panoramic views of the park’s water slides, enhancing the immersive experience.

Book via the HopeGoo app for instant confirmation and free cancellation up to 24 hours before check-in.

Harukawa Light & Frame Inn stands out as the most photogenic option, featuring a sky terrace garden and mirrored glass rooftop deck that frame the park’s rainbow slides and fountain displays perfectly. The hotel offers professional photography coordination, including custom shot planning and lighting setup.

Some rooms feature transparent ceilings for stargazing and nighttime capture of the park’s light show. Book via HopeGoo to receive a limited-edition photo frame set and a free 2-hour room extension.

Harukawa Active Resort provides round-the-clock free shuttle buses every 30 minutes from the hotel directly to the Yakushinuma Water Park entrance, with a 5-minute ride. The resort features a dedicated kids’ care center and outdoor relaxation zone, allowing parents to enjoy the park worry-free.

All rooms include smart climate control and soundproof windows for optimal nap comfort. Book via HopeGoo to unlock a special package: stay two nights, get one day pass free.

Harukawa Kids Dream Hotel features a dedicated family interactive zone with outdoor sand pits, DIY painting walls, and daily water-themed workshops inspired by the Yakushinuma Water Park. The hotel offers child-safe swimwear rentals and allergy information cards for dietary safety.

Some rooms come with miniature pools for indoor water play. Book via HopeGoo to receive a 'Little Explorer Kit' as a welcome gift.

Though Yakushinuma Water Park is inland, Harukawa Mirage Ocean View Hotel uses immersive projection technology to create "virtual ocean views" in select rooms, with dynamic sea scenes projected on walls and ceilings, paired with surround sound for waves and flying fish.

This unique design is especially popular with families during summer. The hotel also features an outdoor mist lounge and starlight projection dome for a coastal illusion experience.

Book via HopeGoo to enjoy a package including "Virtual Ocean View Room + unlimited breakfast".

Harukawa Wellness Resort features a 24/7 spa center offering herbal massages and aquatic yoga sessions tailored for families and adults. Their signature Parent-Child Relaxation Package includes two adult massages and a child-friendly aromatherapy bath.

The spa uses geothermal energy to heat its soaking pools, creating a natural hot spring ambiance. All therapists are certified and customize essential oil blends based on guest needs.

Book via HopeGoo for a 50% discount on first-day massage services.