The Best Day Trips from Seoul by Train in 2025 DescriptionSeoul makes day-tripping effortless: fast trains, frequent departures, and destinations that feel completely different from the capital’s pace. In 2025, three routes stand out for variety and wow-factor in a single day—Gangneung for coastal views and coffee culture, Jeonju for hanok lanes and legendary food, and Suwon for a living fortres..