The underground karst cave scenic area in Tai'an, Shandong province?is located in Qiujiadian town, Tai'an city and is 18 degrees Celsius year-round.

The 3,000-meter-long river for drifting is now the longest underground drifting area in Asia, and offers an exciting experience for tourists.

The drifting journey takes 20 minutes and gives tourists a chance to witness the geological wonders of underground caves.

Crustal deformation that occurred billions of years ago resulted in a great rift valley between Mount Tai and Culai Mountain, which later turned into the biggest Karst cave in the world.

The carve houses a huge variety of stalactites, each with its own unique shape.

The scenic spot is a 4A-level tourist site and attracts over 2 million visitors annually from China and abroad.

Vivid stalactites hang from the ceiling of the Karst cave in Qiujiadian town, Tai'an city, East China's Shandong province. [Photo/WeChat account: SDTXTA]

The Karst cave scenic area in Qiujiadian town, Tai'an is 18 degrees Celsius year-round. [Photo/WeChat account: SDTXTA]

The underground journey offers visitors a chance to enjoy the Karst cave's geological wonders. [Photo/WeChat account: SDTXTA]

The scenic area covers an area of 1.28 million square meters, with 400,000 square meters of wetland providing a place for tourists to enjoy a breath of fresh air. [Photo/WeChat account: SDTXTA]