For sightseeing inside Jeju City, check the Jeju City Tour Bus day-pass terms. Korea Tourism Organization lists a 2026 October–November promotion from the Jeju tourism association: a KRW 12,000 one-day ticket is KRW 8,000 when bought in advance through Tamnao. The listed ticket validity is 60 days after purchase with full refunds within that period. Do not assume walk-up sales receive the same rate. Confirm the current route, departure schedule, stops and actual refund rules with the operator.