Achasan Mountain아차산

At a glance

Achasan, on the border of Seoul and Guri, is a gentle 295.7 m mountain whose summit, about 40 minutes up the trail, opens onto a 360-degree view from Jamsil to Namsan, Bukhansan and Dobongsan. Its history runs deep: Baekje built an earth-and-stone fortress here to guard the Han River against Goguryeo to the north, and together with Pungnap Fortress south of the river it became a key point that Baekje, Silla and Goguryeo fought over. Records call it by several names, including Adanseong and Achaseong.

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Achasan Mountain · 2 tours & tickets

1. GetYourGuideSunrise and sunset hike with temple and K-foodA 2.5-hour Achasan hike with a visit to Gyeongwonjeongsa temple and street food.Book
2. KlookEasy Seoul mountain night hikeA 2–3-hour beginner night hike on Achasan with an English-speaking guide.Book

Places to stay nearby

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Map

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Tips

• 01
  With a summit only about 40 minutes up, Achasan is one of the easiest ways to get a big view over Seoul, including at sunrise or after dark on a guided hike.

Nearby

Theatre des LumieresWalkerhill's former grand theater turned into an immersive art space, where great painters' works are projected across the walls to music.Seongsu-dongSeoul's 'Brooklyn': red-brick factories and warehouses reborn as cafés, pop-ups and flagships, with Seoul Forest and the Han River next door.Ttukseom Hangang ParkA Han River park in eastern Seoul with a rose garden, water sports in summer and the tube-shaped Jabeolle gallery over the riverbank.Seoul ForestA large riverside park beside Seongsu, with woods, wetlands and open lawns on the site of Seoul's first waterworks.