The caves were formed by wave erosion when the sea level was significantly higher before the landmass underwent tectonic uplift.
Archaeologists discovered the 'Changbin Culture' artifacts here in 1968, the first evidence of Paleolithic human settlement on the island.
The caves are named after the Eight Immortals of Chinese mythology, who are said to have resided here.
Lingyan Cave is the largest and most famous of the caves, functioning as the primary temple site.
The site sits on the fault line between the Philippine Sea Plate and the Eurasian Plate, contributing to its unique vertical geological positioning.
Baxiandong, or Eight Immortals Cave, is a collection of natural sea caves elevated above the Pacific Ocean due to tectonic uplift. The site is most significant for the discovery of the 'Changbin Culture,' the oldest Paleolithic site identified in Taiwan, dating back approximately 15,000 to 30,000 years. Several caves have been converted into Buddhist temples, featuring altars and statues built directly into the cavern walls. The caves are situated along the eastern coast of the Coastal Mountain Range. Visitors climb a series of stairs to reach the higher caves, which provide elevated views of the coastline. The geological composition is primarily conglomerate and volcanic breccia. Archaeological excavations have unearthed stone tools and bone fragments, which are now housed in various national museums. The site serves as both a religious destination and an archaeological landmark.
The viewing platform near the higher caves offering a panoramic perspective of the Pacific Ocean and the coastline.
Bring insect repellent, as the humid, sheltered cave environments attract mosquitoes.
Wear shoes with good traction, as the stone steps and cave floors can become slippery from moisture and sea spray.
Plan your visit to coincide with clear weather, as the site is fully exposed to the elements during the climb.
Do not attempt to climb or explore beyond the designated path, as the surrounding rock formations are unstable.
Maintain a quiet, respectful demeanor as these caves serve as active places of worship.
