Shanjunbuli (산굼부리) is a unique fire spout without volcanic lava body on Jeju Island. Its height is about 100 meters, Zhouyan is about 2 kilometers, and the total area is 29.8 million square meters. It is a treasure trove of more than 420 temperate, subtropical and alpine plants are natural plants. Shanjun is a volcanic crater with a circumference of more than 2 kilometers, which is a natural protection object. Located on the flat ground southeast of Jeju City, it is 650 meters in diameter, 100 meters deep and 2070 meters in length. From the air, Shanjun is not far away, like a manually built circular stadium. There are many types of plants, with temperate trees (red thorns, red scorpion) and precious winter strawberries growing on the north side. To the south of the crater is typical temperate forests (western trees, maples, four-shot flowers, etc.). Trees of various natures are also grown in the limited space of the crater, which is highly valued academically. Shanjun is not far from the entrances, stone pools, craters and many other views to view.