Wilderness Landscape & Natural Heritage
Ahalanui Park is located on the eastern shore of Hawaii's Big Island, within the Puna District. The main feature of the park is its large geothermal warm spring pool, filled with naturally heated fresh water that mixes with the ocean water from the nearby Pacific. The unique bathing area has been favored for its comfortable temperature, making it an inviting spot year-round. The park’s geographic setting lies near recent volcanic activity zones, contributing to the geothermal heating and dynamic ocean landscape. The area is ecologically rich, supporting coastal vegetation and marine life typical of Hawaii’s tropical environment. Historically, Ahalanui Park served as an important local gathering site and bathing area before becoming a popular visitor destination. Recreational activities here focus primarily on swimming and relaxation in the warm spring, with visitors also enjoying snorkeling in the adjacent ocean waters. The scenic coastline and opportunity to experience a natural warm pool attract day visitors and outdoor enthusiasts. Due to volcanic eruptions impacting the region in recent years, the park’s accessibility and landscape have changed, but it remains a valued natural feature. The warm spring pool offers a rare geothermal experience in a coastal setting while providing a serene environment for relaxation and connection to Hawaii’s volcanic landscape.
