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Hakone, with kids, Things to Do
Japan/Things to Do in Hakone, with kids

Hakone Kowakien Yunessun (with kids)

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How Kids-Friendly is Hakone Kowakien Yunessun?

83%Kids-Friendly
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Slides, 30 cm splash pools and cartoon BOXAPPY zone suit ages 3-12, half-price entry helps budgets, yet the nude Mori-no-Yu bans under-12s and many stairs demand parent vigilance.

Google
Reviews3.8/ 5
(from 5,055 reviews)
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Positives:

  • Easy access: 10-minute walk from Kowakudani Station on the Hakone Tozan Railway.
  • Free facilities: Lockers, showers and rest lounges are included in admission.

Challenges:

  • No lifeguards: All swim areas require family supervision; there is no lifeguard.
  • Seasonal closures: Outdoor pools and terrace may close in cold weather; check hours before you go.

What is so special about Hakone Kowakien Yunessun for with kids?

  1. Wide range of shallow pools and slides for ages 3–12
  2. Unique adult-friendly baths (wine, coffee, sake) alongside kid zones
  3. Indoor and outdoor areas with scenic Hakone mountain views
  4. Children’s admission at half-price and free lockers included
  5. Fun photo spots and easy family supervision throughout
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Recommended visit duration: 3-4 hours

Why 3-4 hours visit duration is ideal for with kids: A 3-4 hour visit lets your family try key pools, slides and rest areas without rushing younger kids.

(View Hakone Kowakien Yunessun on Map)

Kids-Friendly Activities in Hakone Kowakien Yunessun

BOXAPPY’s Jungle Gym:

Outdoor play pool with slides, water jets and character themes safe for ages 3–10.

Tip: Go early to avoid lines on the larger slides.

Splish-Splash Pool:

Shallow indoor pool (30 cm) with small fountains perfect for preschoolers.

Tip: Bring swim diapers or rent them onsite for hassle-free entry.

Flowing Pool Kid’s Slide:

Gentle 1 m-high slide into a 30 cm-deep splash pool.

Tip: Stand by younger children and let them go one at a time.

Dragon’s Waterfall:

Warm cascading waterfall for a light all-over massage and playful splashing.

Tip: Have older kids stand under the fall, then cool off at the pool’s edge.

Giant Noodle Cup Photo Spot:

Oversized udon-bowl pool perfect for fun souvenir photos.

Tip: Use a waterproof phone case to capture splashy moments.

Content Notice: Some content on this page may be written with the assistance of AI tools. We regularly update to ensure accuracy and relevance. Help Us Improve

Typical Budget for a Family of 4 (2 Adults + 2 Kids)

ItemCost (Approx.)
Full-area admission (2 adults)JPY 7,000
Children admission (2 kids)JPY 3,500
Dr. Fish Foot Bath (4×¥300)JPY 1,200
Total EstimatedJPY 11,700

Note: All prices are indicative and may vary. Please check directly with the venue for the most accurate and up-to-date information.

When is the best time to visit Hakone Kowakien Yunessun?

Outdoor open-air pools close in deep winter; visit in spring or autumn for mountain views. In cold months, stick to indoor baths and slides.

How to Maximize Your Visit to Hakone Kowakien Yunessun

  1. Arrive at opening: Beat the crowds and shorter wait times on slides by arriving early.
  2. Plan swim diapers: Bring or rent swim diapers so little ones can access all pools without delay.

Map of Hakone Kowakien Yunessun

Address: 1297 Ninotaira, Hakone, Ashigarashimo District, Kanagawa 250-0407, Japan

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Reviews of Hakone Kowakien Yunessun

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M K

M K

Aug 2025

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

Jonathan Dudley

Aug 2025

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.

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?

Jul 2025

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

Tammy Wong

May 2025

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

Sarah Thomas

Apr 2025

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...

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About Hakone Kowakien Yunessun

Opening Hours

Monday:10:00 AM – 7:00 PM
Tuesday:10:00 AM – 7:00 PM
Wednesday:10:00 AM – 7:00 PM
Thursday:10:00 AM – 7:00 PM
Friday:9:00 AM – 7:00 PM
Saturday:9:00 AM – 7:00 PM
Sunday:9:00 AM – 7:00 PM

Hours may vary during holidays, special events, and peak seasons. Please check the official website for the most up-to-date information.

Website

Official Website

Phone Number

+81 460-82-4126

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