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Achasan Hiking Guide 아차산
Achasan (아차산) is a 287 m mountain in Gwangjin-gu, Seoul, South Korea.

287 mHeight
EasyDifficulty (approx.)
−1.7°CSummit vs. base
🚇 Getting there by subway
- Junggok Station (중곡역) — about 1.6 km to the summit (straight line)
- Yongmasan Station (용마산역) — about 1.6 km to the summit (straight line)
- Sagajeong Station (사가정역) — about 2.0 km to the summit (straight line)
- Achasan Station (아차산역) — about 2.0 km to the summit (straight line)
Distances are straight-line from the station to the summit; the walk to the trailhead is longer. Search the station name plus the mountain name in Naver Map or KakaoMap for walking directions — they work much better than Google Maps in Korea.
🥾 Achasan hiking trails
There is no official trail description for Achasan. Search “아차산 등산로” in Naver Map or KakaoMap to find the trailhead. For a first visit, plan about 1 h 54 min for the round trip.
🌅 Sunrise & sunset by month
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunrise | 07:45 | 07:22 | 06:45 | 05:58 | 05:23 | 05:09 | 05:21 | 05:47 | 06:12 | 06:38 | 07:11 | 07:39 |
| Sunset | 17:35 | 18:09 | 18:38 | 19:06 | 19:33 | 19:54 | 19:53 | 19:26 | 18:41 | 17:56 | 17:22 | 17:14 |
Around the 15th of each month, Korea Standard Time. Be off the mountain at least an hour before sunset.
🗺️ Maps
Naver Map · KakaoMap · Google Maps
⛰️ Other mountains nearby






🙇 Hiking etiquette in Korea
- Greet other hikers with a short “annyeonghaseyo” — it’s common on the trail.
- Keep to the marked trail; many areas are closed for nature protection (fines apply in national parks).
- Cooking, smoking and drinking are banned in national parks. Take your trash home.
- Read more: Hiking etiquette in Korea
Data: Korea Forest Service (data.go.kr) · Locations: © OpenStreetMap contributors