Introduction to the unique skills of collecting bird's nests: The Swallow Cave welcomes more than 300,000 migratory birds from the Indian Ocean in March every year - white-rumped swifts fly in the cave to build nests and breed. In August, the swallows return to Southeast Asia with their children. Home, leaving valuable bird's nests for Jianshui.
Every year on August 8, Yi compatriots hold a unique Bird's Nest Festival in Yanzi Cave. At that time, you can see local farmers climbing to the top of the cave more than 50 meters high and 450 meters long with bare hands to collect bird's nests among the stalactites. Thrilling scenes.