The official booking FAQ for ferries between Tongyeong's Dara Port and Manjido/Yeondaedo says passengers must carry identification or risk being refused boarding. Infants and children may use a resident-registration certificate, health-insurance document or passport to establish identity. Pets can travel only with an appropriate kennel, cage, sling or pet stroller. Rain does not necessarily cancel the vessel, but weather-related cancellations are communicated to bookings by phone or text. Departure hours and remaining tickets belong to particular dates; never assume a sample schedule displayed online is a permanent service timetable.