What makes it 90% Kids-Friendly: Children up to 12 get lazy river, slides, 30 cm pools, free life vests, and indoor play gym, yet parents must monitor closely because some pools are deep and can be crowded.
Why 3–4 hours visit duration is ideal for with kids: This gives time to enjoy all kid zones, the lazy river, waterfalls and an outdoor bath without rushing.
Splish-Splash Pool & Jungle Gym:
Indoor play area with colorful slides and climbing structures.
Tip: Pick up free life vests for kids at the Ukiuki shop before entering.
Pony Lagoon & Inflatable Slide:
Shallow 30 cm pool with a 1 m high slide.
Tip: Go here early to avoid lines and let younger children build confidence in shallow water.
Lazy River:
Float in inner tubes around a gentle 3-minute loop.
Tip: Reserve tubes right at opening; staff will help secure them and show a quick safety demo.
Dragon’s Waterfall:
Warm waterfall you can stand under or play at its base.
Tip: Bring waterproof phone cases for quick family photos under the falls.
Cave Baths with Aquariums:
Dimly lit grottoes featuring small tanks of fish.
Tip: Stay close to kids in darker areas and shine your phone light to spot fish together.

Maegan Mahula
Great onsen experience with a variety of outdoor baths. The nighttime ambiance was so relaxing.
Mati D
The staff was extremely nice, using Google translation to explain everything to us. We went in the evening at around 7.30pm and there were only a few locals. The ladies part has 5 pools (1 inside and 4 outside) and the mens part 4 pools (1 inside and 3 outside). We can recommend this experience!
Lu Bi Huang
Affordable onsen with a lot of locals visiting so you know it's good. Staff speaks very little english but there isn't much to the visit. Pay 1100yen at the machine and you get a locker to store your belongings. If you've never been on an onsen or know the etiquette, please read up on it . May be uncomfortable for some but you have to go full nude in the onsen, you can however have a modesty tow...
Arash Khosravi
We had a discounted ticket from our stay at Guesthouse Azito&bar which brought the price down to 500 Yen (from 1000 Yen) per person. The onsen is open from 10am to 10pm. It was definitely worth even full price but the discount was a plus! It was a very relaxing experience - the onsen is separated into male and female sections and it is a traditional one (you can only go in with a small towel whic...
n ! d z
We got special price of 500 yen entrance during our stay at Guesthouse Azito & Bar as part of their offer. There was inside bath and outside. The inside was warmer than the outside. There were at least 3 baths outside. It was very relaxing. Good place to de-stress.
All pools are covered so the park is fun in any weather. Outdoor baths feel refreshing in summer but bring a warm robe for winter visits.
Explore These Activities
| Item | Cost (Approx.) |
|---|---|
| Adult admission (12+) | JPY 3,500 |
| Child admission (3–12) | JPY 1,800 |
| Towel rental (each) | JPY 670 |
| Total Estimated | JPY 13,280 |
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: 100-1 Yumotochaya, Hakone, Ashigarashimo District, Kanagawa 250-0312, Japan
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