The sea train that connects the beautiful coastlines of Gangneung, Donghae, and Samcheok has a total of 4 cars, with special cabin cars 1 and 2, car 3 consisting of family seats (4 people) and a train cafe, regular car 4, which is popular with groups, and sweet proposals to convey love. It consists of a room (2 people). The special and standard rooms are shaped like movie theater seats and offer a panoramic view of the East Sea and the dazzling scenery beyond the wide windows. In the cafe car of Car No. 3, you can enjoy a variety of foods and local specialties that are essential during train travel, as well as special memories unique to the Sea Train. They sell souvenirs. In addition, stories filled with memories and romance and fun events are introduced through monitors installed in the cabin and witty announcements made by flight attendants, allowing you to enjoy an even more enjoyable train trip. Another attraction is the small photo zone in the passageway of Car No. 4 and the lights that are illuminated when passing through the tunnel, creating a unique atmosphere.