Basiandong (Cave of the Eight Immortals)

Basiandong is located in the north of Huatung Mountain by the coast of Changbin Township. "Basian", or the Eight Immortals, are famous Chinese deities. Fogs drift perpetually around the caves and the interior is damp and misty. As the environment resembles that in the folklore when the eight deities cross the ocean, the caves were named Basian. In the caves, Taiwan's first prehistoric site was discovered. As the earth's crusts elevated, the mountains were constantly eroded by the sea and 16 caves of different sizes were formed along the cliff as high as 100 meters.

Wooden tour tracks and stone tour tracks lead to all the caves, including Lingyen Cave, Chaoyin Cave, Yung-an Cave, Hailei Cave, Chaoyang Cave, Chienyuan Cave, Kungchen Cave and Kunlun Cave. A prehistoric site was discovered in the highest cave, which is a first grade historic site now. There is an exhibition center showing the objects found in the site, including objects made of bones and stone.