Tian Qiao Sheng San Caused by the collapse of the world. The result is a large deep-pit pond, around 300-500 metres, and there are some as similar to a bridge spanning surpassed the cavity.Between the mountains.
Tian Sheng Qiao San Caused by the collapse of the crust , causing a large hole wells at depths of about 300-500 meters and partially through the hole like a bridge spanning the mountains.
Tian Sheng Shan Chiao, caused by the subsidence of the earth"s crust.Cause a big hole deep pond about 300-500 meters. And there are some niche through like a bridge crossing.Between the mountains.