Phoenix Valley Sex Culture Park offers a unique perspective for sure (Chinese name 天体凤凰谷性文化主题公园). Visitors pass by images, sculptures and geological formations that represent intimate parts of the human anatomy. The full experience combines walking, caving and transport by boat.
First, descend into a deep abyss toward the base of a wisping, dizzyingly high waterfall. Then, enter the bowels of the earth and trace a 1.3 km-long cave tunnel. Finally, emerge into the open on a lake, with the option to boat across the water. A shuttle bus returns you to your starting point.
If you are willing and daring (and not claustrophobic), you can read more here.