Achasanseong Fortress (아차산성)
Gwangjang-dong, Gwangjin-gu, Seoul-si

Quick answer
Achasanseong Fortress (아차산성) is a attraction in Gwangjang-dong, Gwangjin-gu,. Achasanseongseong Fortress boasts magnificent views of the Hangang River and skyline. Use the address, map link, visitor details, and official links below before deciding whether it fits your Korea itinerary.
About Achasanseong Fortress (아차산성)
Achasanseongseong Fortress boasts magnificent views of the Hangang River and skyline. The 200m-high mountain fortress wall was built to face southeast, towards the Hangang River. It is also called Janghan-seong or Gwangjang-seong. A fierce battle was once fought here among Gogury, Baekje and Silla because of its strategic location during the period of the Three Kingdoms. King Gae-Ro of Baekje (r. 455-475) died in the war by the Goguryeo forces sent by King Jang-Su (r. 413-491) and General Ondal of Goguryeo was also killed in a battle with the Silla army in 590. Achasan Mountain is popular as a citizens’ resting place with a historical trail and a natural park including various facilities such as walkway, mountain walkway, a badminton court, a wrestling range, an archery range, various amusement facilities for children, benches, and pavilion.
- Type
- Attraction
- Address
- Gwangjang-dong, Gwangjin-gu, Seoul-si
- Postal code
- 04963
- Phone
- • 1330 Travel Hotline: +82-2-1330 (Korean, English, Japanese, Chinese) • For more info: +82-2-450-7593
- Opening hours
- 24 hours
- Fees
- Confirm before visiting
- Parking
- Available
- Updated
- 2023-04-05
- Data last synced
- 2026-06-25
Best for
- First-time visitors comparing Korea places by area.
- Travelers who need official address and map context.
- Visitors building a day route with nearby attractions.
Visitor tips
- 1
Check current opening hours, tickets, reservations, and holiday notices before visiting Achasanseong Fortress (아차산성).
- 2
Save the Korean address and nearest station or landmark before leaving your hotel.
- 3
Prepare a taxi destination card if you are arriving late, carrying luggage, or traveling with family.
Directions and official information
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Address tools
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Achasanseong Fortress (아차산성) FAQ
Where is Achasanseong Fortress (아차산성) located?
Gwangjang-dong, Gwangjin-gu, Seoul-si
How can I check current opening information?
Use the official tourism or place website before visiting because operating information can change.
How do I find nearby places?
Return to the Korea travel list to explore more official attractions and destinations.
Can I rely on this page as official information?
No. Use ComeKR as practical travel guidance and confirm opening hours, prices, reservations, transport details, and notices with official or provider sources before visiting.