A leisure park perfect for family get-togethers, Jeju Waterworld features various amenities that can be enjoyed if you are looking for things to do in Jeju Island with kids. From regular pools, slides and wave pools to a citrus spa bath and seawater sauna, the water park has it all. A food court, herb sauna, fitness facilities and availability of aromatherapy and massage options make this place suitable for travelers of all ages.