Reed Flute Cave, also known as "the Palace of Natural Arts" is a tourist attraction and attraction in Guilin, Guangxi, China, it is a natural limestone cave with multi-colored lighting, and has been one of the most interesting attractions in Guilin for over 1200 years. It is over 180 million years old. The cave gets its name from the type of reed that grows outside, which can be made into flutes. Reed Flute Cave is filled with a large number of stalactites, stalagmites and other rock formations. Inside, there are more than 70 ink-written inscriptions, which can be dated back to AD 792 in the Tang Dynasty. These ancient inscriptions tell us that it has been an attraction in Guilin since ancient times.