In the mountains, there is a sea, and atop the sea, there is a gate

Sanmenhai is a place worth visiting. Address: Guangxi Zhuang Autonomous Region, Hechi City, Fengshan County, Sanmenhai Scenic Area It is recommended to drive yourself, as waiting for public transportation can be very inconvenient. You can reach the destination by following the navigation address. Ticket prices: Adult ticket 98, student ticket 45 As it is a less popular attraction, the surrounding dining and other facilities are not very well-developed, and the parking lot is not large, so it is recommended to visit during the off-season or when the weather is comfortable. Boats are available in 6-person or 10-person sizes, both are manually rowed and move slowly, with the round trip taking about 50 minutes. This is a hidden spot, not a 'Blue Hole' but surpasses one, with a blue-green color that is more astonishing than the sea. By boat, you enter a sinkhole, traveling through the wonderful caves, experiencing the excitement of a secret realm adventure and the stunning closeness to the blue waters. When the boat exits the cave, there is a delightful surprise. Looking up at the sinkhole, through the skylight, you can see the forest and the blue sky reflected in the water, with scenery within the water, and nature's mystery peering through the skylight. The sunlight shines down, reflecting the blue light of the water on the cave ceiling, glittering like the light of sapphires. Passing through the mountain gate and deep into the cave, continuous exclamations of nature's miraculous work can be heard.