Landscape of cave shaped by years of erosion in Hubei(1/4)

The undated photo shows a boat passes through Mao Cave located in Laifeng County of central China's Hubei Province. (China News Service/Zhou Xingliang)

The water cave is 58 meters wide and 36 meters high, with a 215-meter swallet stream. It is formed by years of water erosion.

Undated Aerial photo depicts exterior scenery of Mao Cave located in Laifeng County of central China's Hubei Province. (China News Service/Zhou Xingliang)

Undated Aerial photo depicts exterior scenery of Mao Cave located in Laifeng County of central China's Hubei Province. (China News Service/Zhou Xingliang)

Undated Aerial photo depicts exterior scenery of Mao Cave located in Laifeng County of central China's Hubei Province. (China News Service/Zhou Xingliang)