Sanmenhai is located in Poxin Village, Paoli Township, Fengshan County, northwest of Guangxi Zhuang Autonomous Region, bordering Bama County, the world-famous hometown of longevity.

Sanmen Sea is located in the core area of karst landform in Guangxi, and it is a national 4A-level tourist scenic spot. It is about 300 kilometers away from Nanning, and both expressways and secondary roads can be reached. The journey takes about 4 hours. 380 kilometers away from Guilin, there are expressways, first-class highways and second-class highways. In addition, it is 20km away from Fengshan County and 20km away from Dashiwei Tiankeng Group in leye county120km.

Sanmenhai Scenic Area is famous for its unique karst landform and rich natural landscape. There are seven karst skylights (tiankeng) in the scenic area, which are formed by connecting a few square kilometers of Ming Lake and a dark lake in series at the exit section of the underground river in the center of the slope. There are two skylight natural passages that can be entered by boat, which makes people feel the mysterious feeling that there is a sea in the mountains and a door on the sea. In addition, Sanmen Sea is also the only water swimming tiankeng scenic spot in the world, with international level.

Characteristics of Sanmen Sea

There are seven karst skylights (tiankeng) in Sanmen Scenic Area, which are connected by several square kilometers of open lakes and dark lakes formed by the outlet section of underground river in the center of the slope. There are two skylight natural passages that can be entered by boat, which makes people feel the mysterious feeling that there is a sea in the mountains and a door on the sea. This unique landscape is very rare in the world tourism resources.

Sanmen Sea is also the only water swimming tiankeng scenic spot in the world, with international level. Visitors can experience the fun of water exploration here, while enjoying the charming karst landforms and natural landscapes.

The skylight landscape of Sanmen Sea Scenic Area has extremely high tourism ornamental value. Dr. Nosario Lucilli, a famous Italian scientific explorer, once pointed out that the Sanmen sea-sky light group in Fengshan is a spectacle, with beads collapsing, and mountains, water, caves and sky merging into one, which is rare and unique in the world.

The above contents refer to Baidu Encyclopedia-Sanmen Sea.