Seoul’s official events database lists well over a hundred free events for October 3-4, 2026, as of October 1.
At least five of them sit in Gwangjin-gu and disappear on or right after October 4, while a longer list of free exhibitions runs well past the weekend.
This post gives the deadline events first, then the exhibitions, the always-free outdoor spots, indoor fallback hours and a free day plan.
Free Things to Do in Seoul This Weekend: The Short Answer
| Sejong Museum Gallery — Cho Deokrae solo show (B2), Sejong Univ. | Through Oct 4, free |
|---|---|
| Sejong Museum Gallery — Kim Donggyu solo show (B1), Sejong Univ. | Through Oct 4, free |
| Belgian Beer Weekend Korea 2026, Common Ground plaza | Oct 2-5, entry free |
| Common Ground central popup, Gwangjin-gu | Oct 2-5, free |
| SeMA ‘Perhaps, All of Us’, Korea Foundation Cultural Center 1F | Through Oct 14, free |
That count comes from the database listing itself; the exact entry-by-entry breakdown could not be re-checked line by line in this run.
What can be listed precisely are the free events in Gwangjin-gu that end on or right after October 4, and the free exhibitions running through or beyond it.
At least 17 of the listed events run past October 4, so a weekend visit is not your only chance for most of them.
October 3, 2026 is Gaecheonjeol (National Foundation Day), a public holiday, so some museums and palaces may open on a holiday schedule — check each venue’s page before you go.
Gwangjin-gu: What Ends on October 4
Five free events in Gwangjin-gu end on October 4 or October 5, and these are the ones that will not be there next weekend.
Both Sejong Museum Gallery solo shows — Cho Deokrae [The Journey of Circulation] (B2) and Kim Donggyu [Swik, Tak] (B1) at Sejong University — are free and both end October 4, 2026.
The Gwangjin-gu outdoor library [Achasan Forest and Rest] runs its final days October 1-4 at Achasan Eoullim Square.
Belgian Beer Weekend Korea 2026 and the Common Ground central popup close October 5; entry to the festival is free but drinks are paid, and drink prices were not listed — check the organiser’s page on the day.
Daily program times for the Achasan outdoor library were not confirmed, so look at the district library notice the morning you go.
Free Exhibitions That Keep Running After Oct 4
If your dates slip past this weekend, these free exhibitions are still open.
SeMA-run ‘Perhaps, All of Us’, a Canada exhibition at Korea Foundation Cultural Center 1F, is free and runs August 25 to October 14, 2026.
In Gangnam: Coreana Museum [Sansu/Landscape] (Sep 10-Nov 27), Gallery 508 ‘Japanese Pop Trio II’ (Sep 1-Oct 28), and the Gangnam Foundation show [A Personal Place: A Public Map] (through Oct 10) are all free.
In Gwanak: SNU Museum of Art ‘Everyday Images’ (Sep 11-Nov 22) and NamSeoul Museum of Art <Jo Sookjin: A Passing Place> (Jul 29-Nov 15) are free.
Long-running free programs for children include the Gangbuk [Everyday Stage] experiential exhibition and workshops (to Mar 31, 2027), Seoul Botanic Park [Bridging Spaces] (to May 16, 2027), and Seoul Grand Park’s <Cotton Candy Elephant> public art (to Nov 16).
For a no-Korean-needed art stop, the SeMA Canada show, the Jo Sookjin sculpture show and the SNU Museum show are all visual exhibitions with free admission and posted dates.
Free Outdoor Spots, Any Day
Cheonggyecheon stream is a free 5.8 km walk from Gwanghwamun toward Wangsimni, open 24 hours.
All 11 Hangang Park districts — Yeouido, Banpo, Ttukseom, Mangwon, Ichon and the rest — are free and open 24 hours; bike rental is the only paid part.
Namsan Park trails and skyline viewpoints are free, and only the N Seoul Tower observatory charges admission.
Bukhansan National Park hiking and the Seoul City Wall Trail are free.
Gyeongbokgung is free if you wear a hanbok; otherwise admission is KRW 3,000 for adults and KRW 1,500 for children (hanbok rental cost itself was not found in the sources).
Bukchon Hanok Village is free to walk but it is a real residential neighborhood — go early, keep quiet and do not block doorways.
Free Indoor Fallbacks for Rain or Holiday Crowds
Rain or a packed holiday street does not end a free day in Seoul — these indoor spaces are free with posted hours.
| Place | Free what | Hours |
|---|---|---|
| Starfield Library COEX | Library and media lounge | Until 22:00 (Samsung Station, direct) |
| National Museum of Korea | Permanent exhibitions entirely free (special exhibitions paid) | Tue-Sun 10:00-18:00, Wed & Sat until 21:00, closed Mondays |
| Jeongdong Observatory | Indoor viewpoint over Deoksugung | Weekdays 13:30-17:30, weekends 09:00-17:30 |
| Cheongwadae Sarangchae | Free entry | 09:00-18:00, last entry 17:30, closed Tuesdays |
| DDP | Exterior, plaza and dulle-gil walkway | Free 24 hours, night LED lighting worth watching |
A Free Day Plan for October 3-4
One documented all-free day: morning at Bukchon Hanok Village plus Samcheong-dong and the National Folk Museum, afternoon in Seochon or along Cheonggyecheon, sunset at Hangang Park or Namsan Park.
- Start at Anguk Station Exit 2 around 9 a.m. and walk Bukchon’s lanes before the streets fill.
- Continue on foot to Samcheong-dong and the National Folk Museum grounds.
- After lunch, walk Seochon, or head to Cheonggyecheon for the 5.8 km stream path.
- Finish at a Hangang Park section or Namsan Park for the sunset view.
Every stop on this route is free and open to walk, so nothing on it needs a booking.
If I were building the weekend, I would anchor it on the two Sejong Museum shows and the Achasan outdoor library first.
My reason is simple: those are the ones that vanish on October 4, while the long-running exhibitions can wait for a later visit.
👉 Gyeongbokgung free entry with hanbok
👉 Sejong Museum Gallery show notice
👉 Gwangjin-gu outdoor library notice
👉 Belgian Beer Weekend Korea 2026 organiser page
👉 National Museum of Korea hours and free exhibits
Related posts
📎 Seoul — everything we know
📎 📅 Upcoming Dates — Release & Event Calendar
Sources
- National Museum free permanent exhibits, hours and closures (vanillahai.com)
- Gyeongbokgung hanbok-free, National Museum permanent free, H (torylala.tistory.com)
- Bukchon, Namsan, Jeongdong Observatory, Cheongwadae Sarangch (seouleditblog.com)
Dates to Put on Your Calendar
- October 3, 2026: Gaecheonjeol (National Foundation Day), a public holiday — holiday hours at museums and palaces could not be verified, so check each venue’s page.
- October 4, 2026: last day for the Achasan outdoor library and both Sejong Museum Gallery shows.
- October 5, 2026: Belgian Beer Weekend Korea 2026 and the Common Ground popup close.
- October 10, 2026: [A Personal Place: A Public Map] (Gangnam) ends.
- October 14, 2026: SeMA ‘Perhaps, All of Us’ ends.
FAQ
Q. What can I do in Seoul this weekend for free?
Per Seoul’s official events database as of October 1, 2026, 185 free events are listed for October 3-4, plus the always-free outdoor spots and free exhibitions covered in this post.
Q. Where exactly are the free events on Oct 3-4?
The deadline events are all in Gwangjin-gu: Achasan Eoullim Square (outdoor library, ends Oct 4), Sejong University (two free gallery shows, both end Oct 4) and Common Ground (Belgian Beer Weekend and popup, Oct 2-5).
Q. Will I need to speak Korean at any of these events?
The free exhibitions (SeMA ‘Perhaps, All of Us’, Jo Sookjin sculpture, SNU Museum ‘Everyday Images’) are visual shows, and the listings confirm free admission and dates with no language requirement; the lecture-style programs (Zhuangzi, Saja Sohak) do assume Korean.
Q. Is Belgian Beer Weekend free even for under-19s?
Entry to the festival grounds at Common Ground is free for the listed run of October 2-5, but drinks are paid, and minimum-age rules and drink prices were not stated in the sources — check the organiser’s page.
Q. Is the Achasan outdoor library still on if it rains?
It runs October 1-4 at Achasan Eoullim Square and is free, but the rain plan and daily program hours were not confirmed — check the Gwangjin-gu library notice on the day.
Free in Seoul This Weekend: Your Three-Step Pick
Cover photo: Youngchive Seongsu (영카이브 성수점) by Korea Tourism Organization — KOGL Type 1 (attribution)
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