Tube Star is a rental service for round water boats on the Han River in Banpo, Seoul. Each boat holds up to six people and comes with a parasol, table, and chairs so riders can bring food and drinks on board. After boarding, staff teach riders to steer by moving levers left and right, and at night the Han River skyline is visible from the water. The boats move slower than pedal ducks, so rides longer than 30 minutes feel slow.