CCTV News: During the May Day holiday, niche cave exploration and underground river navigation in Fangshan, Beijing were favored by tourists. During the holiday, many tourists went to the cave to check in specifically. Next, we follow the reporter to see what the secrets are in the cave.

The deepest part of the underground river underground in Yinhu Cave where the reporter is located is more than 10 meters, and the narrowest width in the cave is only 50 cm. In order to ensure the safety of tourists' visits and protect the cave, the scenic spot has taken a variety of measures.

Stone stalactites, stalagmites, stone pillars of various shapes, as well as a large number of stone chrysanthemums, crystal flowers, and calcite, attracting many tourists. It is understood that Yinhu Cave usually receives about 600 tourists on weekends, and the daily reception volume will exceed 1,000 during the May Day holiday.

Beijing: Immersed in the cave world and you need to cherish and protect precious heritage

These cave wonders we see usually take billions of years to form. Geological experts say that it is not easy to form a cave. In addition to experiencing its unique charm in an immersive tour, you must pay attention to protecting these precious heritages.

As the largest beaded horizontal cave in Beijing, another cave in Beijing, Yunshui Cave, is 613 meters long and formed 400 million to 1 billion years ago. In its six cave halls, there are all kinds of sediments such as stalactites, stalagmites, stone curtains, stone pillars, stone flowers, etc., and the number of tourists is gradually increasing during the holidays.

According to experts, the soluble rocks in the cave are mainly carbonate rocks such as dolomite. They are formed by the shells of marine organisms billions of years ago and are gradually formed by compaction and cementation. While you understand the mysteries of caves, you should also cherish and protect caves more.

Zhai Xiumin, deputy secretary-general of the Cave Professional Committee of the Chinese Geological Society, said: "Don't touch stalagmites, because we carry some spores on our bodies, which are pollen. It will slowly allow these small particles to grow on the surface of the sediments, and the sediments may change color. So I hope everyone can improve their awareness and minimize contact with these sediments."

Beijing: Cave tours drive the development of the surrounding areas and create new holiday consumption scenarios

Relying on cave resources, the local area has launched a variety of new business formats and new consumption scenarios, attracting more and more tourists.

In Shangyingshui Village, not far from Yinhu Cave, there are 50 courtyards operating here. During this May Day holiday, the restaurant has prepared freshly picked toon, pepper leaves, mulan buds and other spring vegetables.

Ma Xia, the head of rural tourism in Shangyingshui Village, Fangshan District, said: "Utilizing these idle resources in the village, it turns out that ordinary people's houses have built homestays and supporting catering. At the same time, the mine trains and camping barbecue will be open to everyone during the holidays."