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Wonderweeks Company inc., | CEO: Kyungyoon Kang | Business Registration Number: 653-81-02169 8F, ES Tower, 17 Teheran-ro 52-gil, Gangnam-gu, Seoul, Republic of Korea | email: contact@mom-mom.net | tel: +82-2-1600-9351

Copyright 2024 Wonderweeks Company inc. All Rights Reserved.

Udangtang

An unmanned kids cafe where children can play with sand indoors

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Popular to boys from 24 to 48 months

Updated at 05/04/2026

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  • Address

    Udangtang, 4th Floor, SI Plaza, 135, Daeho-ro, Osan-si, Gyeonggi-do, Republic of Korea

  • Contact

    0507-1427-0703

  • Facilities

    Nursing room, Diaper changing table, Parking, Reservation

  • Reservation

    Advance reservation required - Naver Reservation

  • Open/Closes

    Mon10:00 ~ 22:00
    Tue10:00 ~ 22:00
    Wed10:00 ~ 22:00
    Thu10:00 ~ 22:00
    Fri10:00 ~ 22:00
    Sat10:00 ~ 22:00
    Sun10:00 ~ 22:00

Popular Ages of Udangtang

Udangtang is
popular to from 24 to 48 months boys

under 12 months

from 12 to 24 months

from 24 to 48 months

over 48 months

  • boys

    58%

  • girls

    42%

Prices & Programs of Udangtang

  • [Fees]
  • 30 minutes: 18,000 won
  • Additional person, 1 person (base capacity: 14 people): 5,000 won
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Parenting Tips for Udangtang

  • There are various things to play with indoors, and you can also enjoy sand play at no extra cost.
  • It has not been open for long (as of May 2025), so it is clean and well maintained.
  • It is available in 30-minute units, so it is great for stopping by and playing lightly for just as long as you want.
  • Outside food is allowed, including delivery food.
  • Welcome tea and snacks are provided, and at the unmanned shop you can buy and eat Hangang ramyeon, snacks, drinks, and more.
  • There is a nursing room, and a water purifier is also available.
  • First-aid supplies are prepared for emergencies.
  • The parking space is limited and the parking difficulty is quite high, so a nearby public parking lot is recommended. You can use Gwol-dong 3rd Public Parking Lot, where the first hour is free, and after that it is 250 won per 10 minutes.

An indoor playground where your kids can run and play freely, Udangttang

Location and accessibility

  • Located at 4F, SI Plaza, 135 Daeho-ro, Osan-si, Gyeonggi-do, Udangttang.
  • It is located in central Osan, making it easy to reach.

Hours

  • Monday-Sunday: 10:00-22:00

Facilities

  • In a pleasant indoor environment, your kids can enjoy a variety of play activities, including sand play, all at no extra cost.
  • Because it is indoors, you can visit regardless of the weather.
  • It is available in 30-minute increments, so it is great for dropping by and playing for just as long as you want.
  • Welcome tea and snacks are provided, and at the self-service snack shop, you can purchase Hangang ramen, snacks, drinks, and more.
  • There is a nursing room, diaper changing station, water purifier, and emergency first-aid supplies.

Amenities

  • Available: nursing room, diaper changing station, parking, reservations
  • Not available: high chair, stroller rental

Parking information

  • Parking space is limited and parking can be difficult, so we recommend using the nearby Gwoldong 3 Public Parking Lot (first 1 hour free, then 250 won per 10 minutes).

Pricing

  • 30 minutes: 18,000 won
  • Additional guest, 1 person (base capacity: 14 people): 5,000 won

Helpful tips for visitors

  • It has not been open for long, so as of May 2025, it is clean and well maintained.
  • Outside food, including delivery food, is allowed.

Other useful points

  • Safety facilities are well equipped, and entry with a guardian is recommended.
  • There is also a rest area for parents.

FAQ about Udangtang

  • What kinds of play facilities can kids use at Udangttang?
    At Udangttang, a variety of play activities are available, including indoor sand play, and all of them can be used freely at no extra cost. The facility is clean and well maintained, so both parents and kids can enjoy a pleasant visit.
  • What are the usage fees and time increments at Udangttang?
    Udangttang can be used in 30-minute increments, and the fee for 30 minutes is 18,000 won. The base capacity is 14 people, and if that number is exceeded, an additional fee of 5,000 won per person applies. Hours are 10:00 AM to 10:00 PM every day from Monday through Sunday.
  • What amenities are available for kids and guardians at Udangttang?
    Udangttang offers amenities for family visitors, including a nursing room, diaper changing station, parking, reservations, a water purifier, and emergency first-aid supplies. However, high chairs and stroller rentals are not provided, so please keep that in mind.
  • How can I park at Udangttang?
    Parking inside the Udangttang building is limited and can be difficult, so using the nearby Gwoldong 3 Public Parking Lot is recommended. This public lot is free for the first 1 hour, and after that, the fee is 250 won per 10 minutes.
  • What is the policy on outside food and snacks at Udangttang?
    At Udangttang, outside food is allowed, including delivery food, and welcome tea and snacks are provided upon entry. You can also buy simple refreshments such as Hangang ramen, snacks, and drinks at the self-service snack shop.

Udangtang Address

Address: Udangtang, 4th Floor, SI Plaza, 135, Daeho-ro, Osan-si, Gyeonggi-do, Republic of Koreaicon-copy-black

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How to make a reservation for Udangtang?

Advance reservation required - Naver Reservation