If trudging through dimly lit caves isn't your idea of a good time—this cave has a hook, and a musical hook at that. The third chamber is lined with stalactites that, when struck with a metal object, resonate at a certain pitches. Some say that there is a stalactite that corresponds to every note in conventional musical scales and rumor has it that some of the musically talented locals are able to bang out various folk tunes and even the Chinese national anthem on them.