The Manmulsang reservation season runs September 1–October 31. The trail from Baegundong via Manmulsang to Seoseongjae is 3 km one way, about 2.5 hours. Start at Baegundong parking, 17 Gayasansingmullwon-gil, Seongju. Online bookings close at 2 p.m. the day before and October entry closes at 1 p.m. This is rated a very difficult trail; bring your QR or booking number and check weather alerts.