Play Ground

Our bouldering area houses several activities in one room, including a full-fledged Bouldering wall with varying angles and courses, a Wonder Wall for projection-map gaming, a Square Trampoline with basketball hoops, and a Fun Wall. Rising in popularity worldwide, the Fun Wall at Lotte Arai Resort is a first in Japan! Come and enjoy an all-new dimension in bouldering fun!

Park introduction


Rising to 4.5 meters, the Bouldering wall has 75 routes and 710 holds, one of the largest in Japan. With a variety of routes, participants of all levels - beginner to expert - can enjoy themselves. Chalk is provided, and climbing shoes can be rented on-site.

Wonder Wall

The Wonder Wall at Lotte Arai Resort is the first of its kind in Japan! Projection Mapping and Climbing are combined to offer a new, game-like experience to indoor bouldering. Game events held twice daily, so come join us.

Event hours: 11:00 / 15:00

Fun Wall

Designed for younger participants, each wall has its own story, so climbers can enjoy an either climb, the stories, or both. A belay and harness system keeps participants safe so even children as young as four can play safely.

Square Trampolines

Men and women of all ages will enjoy playing within with this huge enclosed Trampoline! There are basketballs and hoops to use in a variety of ways. Participants from four years old welcome!


  • Participants must be 100 kg or under and 4 years old or older
  • Weekday hours: 14:00 - 21:30 (reception open until 20:30)
  • Weekend/holiday hours: 10:00 - 21:30 (reception open until 20:30)
  • Reservations not required.
  • Participants under the age of 7 must be accompanied by a guardian.
  • For safety and health reasons, we reserve the right to refuse the use of the facilities to the following persons: A) older participants (senior citizens), B) participants with health problems and C) participants unable to wear the safety harness properly.
  • Pricing

    1 hour
    Adult : 2,000 yen
    6-year-old to 12-year-old: 1,400 yen
    4-year-old to 5-year-old: 1,400 yen ( play limited with Fun Wall and Trampoline )
    2 hours
    Adult: 3,600 yen
    6-year-old to 12-year-old: 2,600 yen
    4-year-old to 5-year-old: 2,600 yen ( play limited with Fun Wall and Trampoline )
    Rental Shoes (1 hour)500yen
  • Guardians may observe children for free.
  • A 1,000 yen refundable deposit is required for each participant. (Not required for observing guardians.)
  • Socks are required when you use rental shoes or Square Trampolines. Please note that socks are not rentaled.
  • Clothing

    1) Clothes easy to move. ( The room is kept at comfortable temperature.
    2) Socks.