Achasan Ecological Park & Acha Mountain
7.7Locals Score / 10#6 of 12 Parks & Outdoors in Seoul
free
Known forauthentichistoricalquietlocal
Achasan is a low-lying mountain (285m) in eastern Seoul with well-marked trails, ancient Goguryeo-era fortress ruins, and an ecological park at its base featuring wetlands and wildflower meadows. The summit offers surprisingly good views of the Han River and the Olympic Park area, and the trails are gentle enough for older visitors and families. It's a genuinely local mountain almost entirely free of tourist crowds, making it one of the most authentic outdoor experiences in the city.
Key facts
| Hours | Hours not verified |
|---|---|
| Price | free |
| Phone | — |
| Website | — |
| Nearest transit | — |
| Time needed | — |
| Best time to go | — |
| Last verified | July 14, 2026 |
Locals Score
7.7/10- Value9.5
- Iconic5.5
- Excellence7.5
- Crowd level3.0
- Authenticity9.0
- Accessibility7.5
Nearby in Ask Seoul
- Ttukseom Hangang ParkPark3.69 km · 46 min walk
- Olympic ParkPark3.92 km · 49 min walk
- Seongsu-dongNeighborhood4.06 km · 51 min walk
- Seongsu Handmade Shoe Street MarketMarket4.2 km · 53 min walk
- Lotte World Tower and Seoul SkyAttraction4.37 km · 55 min walk
Where to stay near Achasan Ecological Park & Acha Mountain
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