Jinshan hot spring is a self-spraying hot spring, which belongs to a high-temperature sulfur spring in igneous areas. At present, more than 300 open-air hot springs have been found, with the underground heat source of 4km2 and the natural water temperature of 80℃ all the year round. The exposed area of hot springs is about 20 meters wide and 50 meters long, and the springs are arranged in a straight line. The distribution of this hot spring is obviously controlled by geological structure and closely related to granite. The main recharge source is Naji River and its tributaries, and the water quality is clear and unpolluted. Natural high temperature pool is the area with the densest spring water. Along the viewing corridor, you can see the hot fog, just like a fairyland. The water quality of the whole high-temperature pool is clear and transparent, and the dense bubbles in the water surge up like boiling soup. Thick mineral deposits and moss mud can be seen at the bottom of the well (pool), with brown or green surface color and milky white inside. Hot spring water is rich in trace elements such as sulfur, aluminum, cobalt, manganese, silver, radon and so on, which has a strange curative effect on rheumatoid arthritis, cardiovascular diseases and skin diseases. Multi-degree hot spring water up to 80℃ can directly boil eggs and has a unique taste.

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■ Colorful Canyon

The vertical cliff in the colorful canyon is nearly 100 meters high, and the color of the rock wall varies from top to bottom. Coupled with the natural lines depicted by joints, it looks like a grand and exquisite rock painting. This steep cliff is a high-angle normal fault plane eroded by running water. The scour marks at different heights on the cliff surface record the changes of river water level in geological history.

The colorful waterfall is the most spectacular sight in the colorful canyon. The mountain stream pours down from the steep cliff more than 30 meters high, and the jade beads splash, which is deafening and spectacular. The scattered water mist often reflects sunlight and presents rainbow-like colors, hence the name colorful waterfall. The steep cliff behind the waterfall is a section formed by an earthquake or landslide, as evidenced by the collapsed stones in the deep pool at the bottom of the waterfall.

■ Granite array

Granite is one of the hardest rocks on the surface of the earth's crust and has strong weathering resistance. Therefore, granite landforms always give people a straight impression. Granite Stonehenge is the result of the combined action of internal and external geological stresses, one is from the structural cracks in bedrock, and the other is from the scouring and transportation of running water. Together, these huge stones with different shapes are like magic weapons with extraordinary momentum.

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■ Wuxiang Gold Mine Site

Located on Dadupo Mountain, about 500 meters southwest of Li Antang, with an area of about 1.5km2, it is a small gold mine with a mining history of nearly 100 years and is still being mined. It is said that the "Jinshan" of Jinshan Hot Spring is named after this. The gold deposits here belong to gold-bearing quartz vein type gold deposits, which are representative of the types of gold deposits. There are two kinds of timely veins in the deposit. One is bedding time pulse, milky white, time pulse and coarse mineral particles, which are formed by two hydrothermal processes, but do not contain ore. The other kind of cross bedding is time-related, blue-gray and time-related, with fine mineral particles, containing a large amount of limonite and pyrite and a small amount of gold. After mining, this gold mine has left a large number of caves and potholes, which are basically in a natural state and have not yet been developed.

■ Goose-lined mortar

Goose-lined mortar is a typical cause of running water erosion. The stone mortar obviously develops along the direction of a group of joints in granite and looks like a row of geese. Due to the loose lithology where granite joints are developed and the strong erosion of rivers, even hard granite surfaces will be eroded to form stone mortar over time.

Travel tips

★ Yunshitou Village

The village is located about 4km west of Naji Town, with an area of about1.4km2. Shitou Village has experienced more than 600 years of historical vicissitudes, and its ancient charm still exists. All the buildings in the village, including ancestral hall, farmhouse, pond foundation and canal, are made of local materials and piled with stones, with exquisite workmanship and unique features.

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★ Didu Hot Spring Villa Tourist Area

Located in Liangxi Town, enping city City, Guangdong Province, more than 60 kilometers away from Guangzhou/KLOC-0. The natural garden area in this area is more than 2 million square meters, and the hot spring garden area is 6.5438+0.5 million square meters. The mountains are green, the scenery is beautiful and the air is fresh. There are more than 80 large, medium and small hot springs designed and built by using China's traditional culture and local culture, including the world's largest hot spring waterfall group, hot spring stage and hot spring baths. It is also the largest hot spring with landscape culture in the world. In February, 2000, it was registered as "Mingquan Imperial Capital" with the approval of the state. In April of the same year, it was recommended as a health base by the World Health Organization, and it was the second health base recommended by the organization. Macao Health Care Association has been designated as a health care base.