Introduction to the Swiftlet Cave: It is named after thousands of short-billed swiftlets, a national second-level protected animal, that live in the limestone cave in the pass all year round.
Swiftlets were originally birds that lived on the seaside. Although they have experienced hundreds of millions of years of geological changes - uplifting from the vast ocean to the roof of Central China, they still retain their ancient living habits and inhabit here, becoming a part of the earth's environment. A living fossil and witness of change.