The Han Caves are a series of natural limestone caves located in the Han River valley in China. These caves are known for their stunning rock formations, including stalactites and stalagmites, which have formed over thousands of years. The area is a popular destination for tourists and researchers interested in geology and natural history. In addition to their geological significance, the Han Caves also hold cultural importance. They have been used by local communities for shelter and storage throughout history. Today, the caves are part of a protected area, ensuring their preservation for future generations to explore and enjoy.