Visit Jeju states that restrictions on outside vehicles entering Udo Island have been extended from August 1, 2026, through July 31, 2029. Travelers should not assume that any ordinary rental car is allowed to board an island-bound ferry.
Conditional exemptions listed by the tourism authority include 16-seat charter buses, qualifying Category 1 low-emission electric and hydrogen rental vehicles, rentals used by travelers with mobility needs, and rentals for visitors staying overnight on Udo. Exemption does not mean unconditional entry: vehicle classification, passenger eligibility, hotel documentation and other conditions may apply. Rental motorcycles and personal mobility devices can also face restrictions based on vehicle type, speed, energy source and insurance.
Udo ferries operate from Seongsan and Jongdal ports, subject to sea and weather conditions. Visitors without a vehicle can consider walking, cycling and locally permitted transport. Ask the current ferry operator to confirm loading eligibility and documents before departure.