What makes it 72% Baby-Friendly: Babies enter free and have nursing rooms, diaper tables, stroller access, and shallow 30-cm pool sections, yet parents must hold them in all deep water and buy swim diapers, so vigilance is essential.
Why 3-4 hours visit duration is ideal for with baby: Allows for pool time, baby rest breaks, and use of baby rooms without rush.
Splish-Splash Pool:
30cm-deep indoor pool with gentle water jets
Tip: Hold your baby at parent height and walk slowly to introduce water safely.
Baby Room Facilities:
Private rooms with nursing chair, changing table, and hot water
Tip: Visit early to avoid wait and warm bottles on-site without extra prep.
Free Relaxation Room:
Tatami mat lounge with mountain views and space for baby naps
Tip: Use this quiet spot between pools to feed or nap your baby.

M K
Gross! We visited the swimsuit pool area as visitors, did not stay at the hotel. It was crammed full of people. Some surfaces were slippery and almost all areas except the rest area upstairs were not clean. Locker rooms were slimy and dirty. If youre from the U.S. and know Great Wolf Lodge, it was like that but worse. The staff at the front were very nice, that was about the only good thing abou...
Jonathan Dudley
We came to the water park. It was hideous. For children they can run around and have a good time. It is not for adults at all. So busy and tacky. Not relaxing at all..I did come on a weekend. The staff were very helpful but unless you have small kids don't bother.
?
The floor was wet (obviously) but we all had to go with bare feet.. making me worry all the time about getting foot bacteria that would make them fall off or grow fungus. Please let me just wear slippers it's not that big of a deal. It wouldn't be IF it wasn't so damn crowded. Can't even lay down in the pools because there is someone next to you and most of the pools were unenterable because of t...
Tammy Wong
Our family of 4 rented a car just to come here for a day. Place was spacious, plenty of lockers and different themed warm pools. Price is relatively cheap. Outside onsen with the view was closed for maintenance which was disappointing. We did the fish nibbling your feet which was fun. Place desperately needed an upgrade though. Everything is so run down, the bottom of the outside cave pool w...
Sarah Thomas
We went to the water park- booked tickets online for the afternoon slot and rented towels for ¥250 each. Was very easy to fill many hours here. Lots of different novelty onsens to get in, the water everywhere was lovely and hot and even around the pool areas was really warm too, makes a change from uk public pools! You can tell it’s older but it still felt clean enough and plenty of lifeguards. Yo...
Avoid outdoor pools in winter; winter months can be chilly for short breaks outside the heated swimwear area.
Explore These Activities
| Item | Cost (Approx.) |
|---|---|
| Swimwear-area admission (2 adults) | JPY 5,000 |
| Baby swimwear rental | JPY 770 |
| Swim diapers pack | JPY 550 |
| Towel rental set (2 bath + 1 face) | JPY 650 |
| Stroller storage | JPY 200 |
| Total Estimated | JPY 7,170 |
Note: All prices are indicative and may vary. Please check directly with the venue for the most accurate and up-to-date information.
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Address: 1297 Ninotaira, Hakone, Ashigarashimo District, Kanagawa 250-0407, Japan
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