There are more than 3 lava tunnels in the park, the longest of which is 2 meters. Their internal forms and landscapes are rich and wonderful, which are rare at home and abroad and are of great research and ornamental value. Luo Jing Pan, Shuangchiling and other low-level craters in the park are all Ma Volcano. It is the product of steam magma explosion caused by the interaction of deep hot magma with cold groundwater during its ascent. The Maer volcano in the park is large in scale, well-preserved and precious. Shuangchiling is two parallel twin Ma 'er volcanoes, and the crater wall is a tuff ring. Pan Ma Bait volcano in Luo Jing, with an inner diameter of 1m, has a perfect round low-level crater, and its radial and ring-shaped pastoral scenery is very pleasant.
China Leiqiong Haikou Volcano Group World Geopark is a park with multiple functions, such as range-finding and exploration of volcanoes, appreciation and tracking of volcanic ecology and culture, health care and vacation of volcanic mineral springs, scientific research and popularization, etc. It is a world-class tourist destination of Haikou, the leisure and entertainment capital of China, and an important brand of traveling to tropical islands.