I just came back from the Hanzhong tiankeng, and National Geographic did not deceive me.

🎈 Known as "the sixth largest tiankeng in the world" and "the most beautiful tiankeng in the world", it integrates tiankeng, underground rivers, caves and canyons into one, beautiful and dangerous. There are dense trees growing on the cliffs of the tiankeng, covered with weeds, and a thick layer of moss grows on the tree trunks, giving it a primitive sense of tranquility. 🕳️Standing at the edge of the tiankeng and looking from afar, the continuous green mountains surround the huge tiankeng, surrounded by thousands of walls, like knives and axes, it is lonely, steep and unfathomable. The swallows are flying over the bottom of the pit, and hundreds of birds are singing in the forest. Streams form waterfalls on the cliffs and flow deep into the caves at the bottom of the valley. 📍Detailed address: Chanjiayan Town, Ningqiang County 🚗Transportation guide: [One] High-speed rail [Ningqiang South Station], take a taxi after leaving the station 🌟Highlights: [One]For hiking enthusiasts, this is a paradise. The "Hanzhong Tiankeng Group" has beautiful scenery, and the mountain road is winding along the way, but there are surprises everywhere. [Two] This is a super movie-making place! The tiankeng and the Tyndall effect are perfectly combined. The blessing of light and shadow makes the color of the stone walls in the cave change unpredictable. Not only can you experience the wonderful change of seasons, but you can also shoot blockbusters of various styles. There are karst landform wonders, sinkholes, caves, stone forests, river canyons, meadows, forests, peak caves and many other landscapes, which make people dizzy and appreciate the miraculous craftsmanship of nature. 📌Warm reminder: [One] Since the sinkhole has not been fully developed, there is no signal inside [Two] The light in the cave is dim, the ground is wet, and the slope is steep and slippery, so be sure to prevent slipping! [Three] You need a guide to enter the cave, don’t go there by yourself! Be sure to travel in a group or follow a professional organization!