Kodomonoyu Playcenter (Skytree Soramachi, Tokyo)

Ventured out to Sumida today to visit the Skytree Soramachi shopping area and specifically the Kodomonoyu Playcenter (Kids Onsen -こどもの湯). Kodomonoyu is an inside playcenter that has been designed to be like a Japanese onsen but the water has been replaced by over 88,000 plastic balls. If you have kids ages 2-5 years, it is a fun place to spend 60-90 mins on a cold or rainy day. You can combine it with a visit to the Sumida Aquarium, shopping or a trip up the Tokyo Skytree.

Kodomonoyu Playcenter

The play center charges entry for the initial 60 mins and then there is an incremental charge for every 30 mins past the initial 60. We stayed for 60 mins which was enough but 90 mins would have been ideal.
You will be given a locker key for your valuables. They do not want anything dropping into the ball pools. Note there are no bathrooms inside the facility, but public bathrooms are right outside the play center. I recommend you take a potty break before starting your 60-90 min play session. The entry is set-up like an onsen but the only thing that will be bare is your feet.

Once you enter there is a play area with ping pong, four play stations with a vegetable store, sushi shop, takoyaki stall and okonomiyaki and grilled food. There is also some matsuri games (festival like games) you can pay extra. My daughter loves playing shop and cooking, so we probably spent half our time in this area.

The play onsen filled with over 88,000 balls is a blast. Baby and I pretended we were swimming and escaping from sea monsters to the island in the middle of the center. A fun activity for a three-year-old. There is also a smaller ball pit for 0-2-year-olds. As well as a climbing wall just right for 3-5-year-olds.

Also, for the tired parent, there are small table to drink tea at and massage chairs to relax in while your child plays.

Kodomonoyu Playcenter (東京こども区こどもの湯) Details
Address: Tokyo Soramachi 5F, Tokyo Sky Tree, 1-1-2 Oshiage, Sumida-ku, Tokyo (東京都墨田区押上1-1-2 東京スカイツリータウン「東京ソラマチ」5F)
Phone: 070-3100-3589
Business Hours: Daily 10:00〜21:00（last entrance 20:00)
Cost: Kids under 2nd grade elementary school entrance 1,080 JPY for 60 mins, 600 yen for every 30 mins after initial 60 mins; All others 3rd grade elementary and above (includes adults) entrance 540 JPY for 60 mins, 300 yen for 30 mins after initial 60 mins.
Access: 2 min walk from Tokyo Skytree station on the Tobu Skytree Line; 15 min walk from Oshiage Skytree Station on the Hanzomon Line.
Website: http://www.aeonfantasy.co.jp/kodomoku/
Facebook: https://www.facebook.com/kodomonoyu