Reserve a free timed Children's Museum session online for every visitor, including babies, before travelling to Yongsan. The National Museum of Korea's permanent galleries are a separate visit; admission to them does not replace the Children's Museum reservation. Checked 9 November 2026; the museum may change sessions or issue temporary closure notices.

At a glance

TopicWhat to do
Who needs a place?Reserve for children and accompanying adults; include toddlers under 36 months. Adults without children and children without adult guardians cannot enter the Children's Museum.
When?The official individual reservation page says booking opens at midnight 14 days before the visit and closes 50 minutes after the session starts.
What does it cost?The museum's visitor page lists the permanent galleries and Children's Museum as free; special exhibitions may charge.
If late?The reservation page says a booking is automatically cancelled 30 minutes after the session starts. Cancel by the session start if you cannot go; a no-show can restrict future booking for 60 days.

These rules are about the Children's Museum, not every activity or paid exhibition at the National Museum. Confirm the live reservation page, the date and age conditions for your group before relying on them.

Although online booking may remain open after a session begins, the automatic cancellation rule makes a late arrival risky. Do not assume a late booking guarantees entry; check directly with the museum.

Reserve a session your family can actually reach

  1. Open the official Children's Museum booking guide, choose individual admission, and select the date and session.
  2. Count each adult and each child, including infants. The site says an individual booking is for two to five people and can be made once per day. For a larger family, check how separate reservations work before travelling; do not assume seats can be added later.
  3. Save the mobile confirmation and allow time to find the Children's Museum entrance. On-site ticketing is not available according to the museum.
  4. If the plan changes, cancel before the session starts. A cancelled place can return to the online pool, but this does not guarantee another visitor a seat.

The visitor information page lists five sessions, currently 09:30–10:50, 11:00–12:20, 13:00–14:20, 14:30–15:50 and 16:00–17:20. Treat these as the checked schedule, not a guarantee for your date: holidays, school vacations and maintenance may affect opening.

A practical half-day sequence

Before departure: check the museum's current notice and your ticket time, and keep the museum address offline. Korean address: 서울특별시 용산구 서빙고로 137. The Children's Museum gives the English address as 137 Seobinggo-ro, Yongsan-gu, Seoul. Search the Korean address in your preferred local map app; check the accessible exit and actual route before setting off.

On arrival: find a restroom and check the session entrance rather than starting a distant gallery just before your ticket. The National Museum lists lockers near the Children's Museum, a lactation room opposite the museum shop on the first floor, and free stroller loan in the Great Hall for children up to 15 kg, subject to availability. These facilities are listed on its visitor page; confirm their location and whether a loan is available on arrival.

After the session: use the permanent galleries for a shorter second activity if everyone still has energy, or leave rather than forcing a full museum circuit. Set a meeting point before separating. Food and drinks are not permitted in exhibition galleries; check current facilities if your child needs a snack.

If you cannot get a reservation

The permanent galleries are a separate option, but check their current hours and any holiday closure before travelling. The museum overview for Seoul can help you select another collection; it does not promise an identical child-focused experience. For an indoor day with less travel, use the rainy-day clusters and pick one area.

Checklist to save

  • Museum and Children's Museum open on the date; any temporary notice checked.
  • One timed booking covers the adults, children and infants in your party.
  • Mobile ticket saved and cancellation deadline noted.
  • Korean address, a route and an accessible station exit checked.
  • Restroom, feeding or stroller needs planned, with a flexible next stop.

Sources checked 9 November 2026: National Museum visitor information, Children's Museum reservation guide, and Children's Museum official site.