LOTTE HOTEL JEJU’s He:on Spa & Garden is a luxury spa that appeals to the five senses and remains warm year-round. Just like its name "He:" (ocean) and "on" (warmth), this all-season outdoor spa pool recreates the natural settings of Jeju. Enjoy a starry night swim under the stars of Jeju’s evening skies, while also entering a true paradise as you take a walk in the exotic garden in perfect harmony with Jeju’s natural surroundings.