Seoul City Hall’s free Sky Observatory, visited: the elevator queue, the 2,500 won café, what you can see, hours from the sign on the door, plus the library roof garden and the basement gallery.
Starfield Library at COEX in Seoul is free and open 10:30 to 22:00 every day. The escalator photo queue, why the books above the sixth shelf are fake, and % Arabica of Kyoto opening its first Korean store inside the library.
Most people do Jamsil in daylight: up Lotte World Tower, round the mall, home. The neighborhood is better after dark.
Seoul Sky is the observation deck at the top of Lotte World Tower in Jamsil. The tower is Korea’s tallest
Seoul runs 200+ public indoor playgrounds where two hours costs 1,000-2,000 won a person. How the two systems work, how foreign residents book them, and a full walkthrough of Dogok Children’s Indoor Playground in Gangnam.
Seoul just made getting around a lot more scenic. The Hangang Bus is the city’s new public river ferry, gliding
The big, fun stores worth walking into in Myeongdong - K-goods at Mimiline and Wiggle Wiggle, cook-your-own ramyun at Emart24 Lab, a 12-floor Daiso, and Korea’s flagship Olive Young - plus how to get there and what to buy.
A free, no-reservation kids’ water playground in front of Mapo-gu Office - foam show, water rollers, ball pool and a polar-bear dome, with lifeguards and changing tents.
Seoul’s districts run 100+ free children’s water playgrounds every summer - no reservation needed. Free PDF list (by district) plus how to find the one near you.
A complete guide to Seoul’s Hangang River outdoor swimming pools - 2026 season, prices, how to get there, rules, what to bring, and Yeouido vs Ttukseom (lazy river). Plus an FAQ for first-timers.
Okay, real talk: if you’d asked me a few years ago what came to mind when I heard “Yongsan,” I’d
Seoul Battleship Park in Mangwon lets you walk through three real retired Korean navy vessels - a frigate, a patrol boat and a submarine - right on the Han River. Hours, tickets, history and a half-day Seoul itinerary with Han River ramyeon.
SeoulKnows is an English guide to Seoul and Korea, written by WY, a Korean who loves showing the country to visitors. The guides cover hotels, food, transport and the practical details of a trip.
Affiliate links: some pages contain affiliate links. If you book through them we may earn a commission, at no extra cost to you. See Terms & Disclosure.
© 2026 SeoulKnows · All reviews are based on personal visits.
