You might be encouraged to visit today, but Acha Mountain Fortress hasn't always rolled out the welcome mat! Learn the story behind this mighty stronghold and exactly what it was built to defend.

If you're planning to stick around a while in Gwangjin-gu, Acha Mountain Fortress is a great place to start your sightseeing. This history-filled fortress is one of many attractions that'll keep you on the go here. Dongdaemun History and Culture Park, Korea University, and Seoul Olympic Stadium are also waiting to be explored nearby.

Plan a trip to see Acha Mountain Fortress

Price found within the past 48 hours. Click for updated prices.

57 Myeongdong Hostel

Myeong-dong

$821

per person

Feb 6 - Feb 11

found 22 hours ago

Roundtrip flight included

San Francisco (SFO) to Seoul (ICN)

8/10 Very Good! (606 reviews)

Excellent stay, highly recommend this place, great service, great room

Reviewed on Dec 18, 2025

The Stay Hue Myeongdong

Myeong-dong

$1,087

per person

Feb 14 - Feb 18

found 12 hours ago

Roundtrip flight included

Seattle (SEA) to Seoul (ICN)

9.4/10 Exceptional! (162 reviews)

So clean and nice!! Quiet too! Honestly just stay here, compared to the other ones in the same building.

Reviewed on Dec 17, 2025

Royal Emporium Incheon Airport Hotel

Jung-gu

$1,040

per person

Feb 12 - Feb 16

found 6 hours ago

Roundtrip non-stop flight included

Newark Liberty Intl. Airport (EWR) to Seoul (ICN)

8/10 Very Good! (380 reviews)

Clean and comfortable but not many staff to assist

Reviewed on Dec 11, 2025

Browse tours and tickets to explore Acha Mountain Fortress

Tours & day trips

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Best DMZ Tour Korea from Seoul (Red Suspension Bridge Optional)

Free cancellation available

Private & custom tours

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Seoul Night Palace & Market Food Tour (Vehicle Included)

Free cancellation available

Classes & workshops

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Seoul: Korean BBQ Place of the Month Curated by the Host

Free cancellation available

Adventure & outdoor

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Seoul: Nami Island and Garden of Morning Calm opt Railbike

Free cancellation available

Shopping & fashion

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Seoul: Gyeongbok Palace, Bukchon Village, and Gwangjang Tour

Free cancellation available

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