The official VisitJEJU listing for Seongsan Ilchulbong's paid summit trail gives different seasons. November–February: open 06:00–18:00, tickets 06:00–17:00. March–April and September–October: open 05:00–19:00, tickets 05:00–18:00. May–August: open 04:30–20:00, tickets 04:30–19:00. The site lists a closure on the first Monday of each month (next day if a public holiday) and forbids bringing food. Paid-trail tickets are KRW 5,000 per individual adult or 4,000 on the group rate, and 2,500/2,000 for children and teenagers. Address: 284-12 Ilchul-ro, Seongsan-eup, Seogwipo; phone 064-783-0959. Weather may restrict climbing on a given day.