The fourth weekend of October in southern and eastern Gyeonggi is a pile-up: festivals wrapping up and brand-new events starting, all at once.
The Namhansanseong Autumn Festa and the Gyeonggi Children’s Museum 15th anniversary event both end this weekend.
Gwacheon National Science Museum’s Halloween week and the Moomin exhibition in Guri go the other way and open on 10/24 (Sat).
Out of all of it, I picked just 7 places you can actually do with kids on Saturday or Sunday.
1. Halloween Week at Gwacheon National Science Museum
10.24 (Sat) – 30 (Fri) · Free
‘A Suspicious Week at the Insect Hall: CREEPY WEEK’ starts this Saturday, with the Insect Ecology Hall dressed up to look spooky. Kids listen to a talk about spiders and get candy.
During the same dates, the Natural History Hall runs ‘Don’t Wake the Dinosaur’. Kids work through five missions without waking the dinosaur. Both are walk-in, no reservation.
There’s also a free stamp tour where you hunt for Hero Cat stamps hidden around the museum, running until 10.31 (Sat). The Science Exploration Hall is closed for renovation until 11.2.
This week, 10/19 (Mon) is a regular closing day.
Location: Insect Ecology Hall & Natural History Hall, Gwacheon National Science Museum (110 Sanghabeol-ro, Gwacheon-si, Gyeonggi-do)
Gwacheon National Science Museum October & November programs
2. Picnic Day at Gyeonggi Children’s Museum
10.24 (Sat) & 25 (Sun) · 10,000 won per team
The museum’s 15th anniversary event, ‘Fifteen, Let’s Play Together!’, ends this weekend. This weekend’s program: you borrow a picnic basket from the museum, have a picnic nearby, and fill in a mission sheet along the way.
Only 7 teams per session, up to 5 people per team. Besides advance sign-up, they say they also take walk-in registration on the day.
Booking a visit to the museum exhibitions is separate. Return the basket to the information table on the 1st floor by 4:40 pm that day. If it rains, the program moves indoors or gets canceled.
Location: Around Gyeonggi Children’s Museum (6 Sanggal-ro, Giheung-gu, Yongin-si, Gyeonggi-do)
Gyeonggi Children’s Museum Picnic Day info
3. Hwaseong Haenggung Palace Night Opening ‘Dalbit Hwadam’
10/23 (Fri) – 25 (Sun) 18:00–21:30 · Children 1,000 won
The palace night opening, held every Friday to Sunday since May, ends on 11. 1. (Sun). After this week, only one more weekend is left.
Admission is 2,000 won for adults and 1,500 won for teens. Kids are 1,000 won.
Last entry is 21:00. It’s a night walk through exhibition content built around the palace’s heritage.
Location: Hwaseong Haenggung Palace area (825 Jeongjo-ro, Paldal-gu, Suwon-si, Gyeonggi-do)
Suwon Cultural Foundation: Hwaseong Haenggung night opening
4. Autumn Festival at the Railroad Museum, Uiwang
10. 24 (Sat) & 25 (Sun) 14:00 · Child admission 2,000 won
Real railway workers come in to talk about their jobs. Saturday is a rolling-stock mechanic, Sunday is a train dispatcher.
It’s held in the diorama room of the indoor exhibition hall. Number tickets are handed out on site, first come first served, 30 minutes before it opens.
On Sunday there’s also ‘Railway Safety Explorers’ in the outdoor exhibition area. Kids from age 7 to 4th grade learn, through play, what to do in a train fire and how to stay safe at level crossings and on platforms.
Safety Explorers runs twice, at 12 noon and 4 pm. 15 kids per session, first come first served, sign up at the diorama room desk.
Admission is 2,000 won for ages 4–18. Under 48 months is free.
The museum is closed every Monday, so it’s closed on 10/19 too.
Location: Railroad Museum (142 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do)
Railroad Museum autumn festival railway jobs talk notice
5. Namhansanseong Autumn Festa
10/24 (Sat) & 25 (Sun) final weekend · Free
‘Fortress City in the Forest’, held every weekend since 9. 5., ends this weekend. Traditional culture activities, an eco-history camp and a folk performance show take place around the Haenggung (temporary palace).
The festa itself is free; you only pay admission to the Haenggung. If you live in Gyeonggi-do, the Haenggung is free too.
At Chimgwaejeong, a pavilion near the Haenggung, there are free AR and VR experiences on weekends from 11:00 to 16:00.
Location: Namhansanseong area (731 Namhansanseong-ro, Namhansanseong-myeon, Gwangju-si, Gyeonggi-do, Gyeonggi-do Namhansanseong World Heritage Center)
Gyeonggi-do Namhansanseong World Heritage Center Autumn Festa info
6. Family Musical ‘The Story of Under the Sea’ in Seongnam
10.24 (Sat) & 10.25 (Sun) · R seats 77,000 won / S seats 55,000 won
A family musical set under the sea comes to the Seongnam Arts Center Opera House this weekend.
Saturday has three shows, at 11, 14 and 16:30. Sunday has two, at 11 and 14, so that’s only 5 shows over two days.
Running time is 80 minutes. Children under 24 months can’t enter, and it’s 1 ticket for 1 person, kids included.
This isn’t a Seongnam Cultural Foundation production; it’s a privately produced show renting the venue. The official page doesn’t show remaining seats, so you have to check on the booking screen.
Location: Seongnam Arts Center Opera House (808 Seongnam-daero, Bundang-gu, Seongnam-si, Gyeonggi-do)
Seongnam Arts Center: Under the Sea show info
7. ‘The Moomin Family’s Adventure’ Exhibition in Guri
Opens 2026.10.24 – runs to 11.25 · Free
A touring exhibition about the world of the Moomin family and their friends opens this Saturday at the Guri Art Hall Gallery.
It’s free and open to all ages. Hours are 09:00–18:00, and it runs until the 25th of next month, so if you miss this weekend you still have time.
Closing days aren’t listed in the official info. If you plan to go on a weekday, calling 031-580-7900~1 first is the safe bet.
Location: Guri Art Hall Gallery (453 Achasan-ro (Gyomun-dong, Guri Cultural Foundation), Guri-si, Gyeonggi-do)
Guri Cultural Foundation: The Moomin Family’s Adventure info
Also this week
- Gyeonggi Ceramic Biennale Kids Biennale ‘EARTH PLAYLAB’ · Weekends and public holidays until 11. 01. · Clay play at Gonjiam Ceramic Park, Imagination Clay Storehouse 5,000 won (first come first served via Naver)
- Yongin Children’s Imagination Forest show ‘Rhythm Restaurant’ · 10/24 (Sat) & 25 (Sun) 13:00, 15:30 · Final weekend, 15,000 won
- Suwon Arboretum Autumn Flower Festival · 10. 24. (Sat) · One day only at Ilwol Arboretum, with an autumn flower display, a concert and a flea market
- Gwacheon National Science Museum October Moon & Stars Night · 10. 24. (Sat) from 18:30 · 5,000 won for 1 person, book by 10.23 (Fri) 23:59
- Yeoju Ogok Naru Festival · 2026. 10. 23. – 10. 25. 10:00–21:00 · Around Silleuksa National Tourist Site, free. Royal tribute parade, Yeoju rice bibimbap cooked in a giant cauldron (for the exact festival site, call Yeoju Sejong Cultural Foundation at 031-881-9693)
- Namyangju Kids Classic ‘Unboxing! Music Delivery’ · 10.24 (Sat) 15:00 · Making music with delivery-box toys, 12,000 won
FAQ
Q. Do I need a reservation for the Halloween events at Gwacheon National Science Museum?
Both CREEPY WEEK at the Insect Hall and ‘Don’t Wake the Dinosaur’ are walk-in, so there’s no reservation.
They run 10.24 (Sat) – 30 (Fri) and are free.
Q. Is the Namhansanseong Haenggung free for Gyeonggi-do residents?
Yes. The official info says Gyeonggi-do residents can enter the Haenggung for free.
The Autumn Festa is free too, and 10/25 (Sun) is the last day.
Q. How much is child admission at the Railroad Museum in Uiwang?
Ages 4–18 are 2,000 won, and babies under 48 months are free.
Adults (19–64) are 4,000 won, and the museum is closed on Mondays.
You might also like
- Where to go with kids in Seoul this week
- Where to go with kids in Goyang, Paju, Gimpo & Incheon this week
- This week’s Seoul pop-ups worth visiting with kids
* Based on each organization’s official info as I checked it on 10/18–19. Things can change.
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