Seosan Millennium Smile Trail: 21 km

An official 21 km Seosan route, with start point, highlights and safety checks.

Why it matters now

Reviewed against the city route page on 22 October 2026; access restrictions may change.

Before deciding to visit

The article changed after this brief was checked; reconfirm the details.

Seosan City’s official walking-route guide lists Seosan Millennium Smile Trail: 21 km as 21 km. From Yugibang House to Jinammun Gate of Haemieupseong Fortress. The route links Yusangmuk House, Yonghyeon Valley, the rock-carved Buddha triad, Bowonsa Temple Site and Gaesimsa Temple.

Before you set out: The city-wide route overview shows 21 km, while a separate Section 1 page states 18 km. Check the latest map and GPX before departing and plan for a long walk. Consult the official map for current access, carry water and a charged phone, and plan your return. Recorded GPS distances may differ.

What we're seeing

The 21 km route calls for preparation suited to its landscape. Distinguish its endpoints and distance from other Seosan walks.

What we still don't know

Real-time closures, works, weather impacts, GPS traces and same-day public transport were not confirmed.