Sanmenhai Sinkholes

In Fengshan County, Hechi, there is a place that is known to few. The Sanmenhai Sinkholes is an incredible geological wonder. The karst topography grants this place with underground rivers and sinkholes. Sanmenhai has a total of 7 sinkholes, 3 of which are open to tourists and the river here is ocean blue, for which it is called Sanmenhai (Three-gate Sea). Sailing on the raft, the passenger will slowly go through the three holes on water, being amazed by this movie-like scenery.