During The Battle of Bamianshan (八面山战斗) Nationalist guerrilla headquarters located in the Swallow Cave (Yanzidong, 燕子洞).
Halfway up a hill just east of Yanziya lies Yanzidong, a cave famous for its golden swallows. A short 50 metre climb up from the road leads to the entrance - the cave itself heads backwards into the mountain for more than 3 kilometres.
Flora and fauna
Inside the cave, one of the few swallows that doesn't migrate seasonally, the golden swallow inhabits the cave all year round.
Regular bus from Jianshui. Very small car parking... Not recommended to come by car.
The nests are collected by local climbers once a year on the famous "Bird's Nest Festival". It takes place every year between 08-AUG and 10-AUG. Brave locals climb up the 50m high cliffs to fetch these nests. They also leave colourful signs at the top of the cave, huge banners with chinese text on them.
This is done every year on 21-MAR on another local festival. Firecrackers are let off to express people's good wishes to the climbers. More than 1,000 boards hang on the stalactites above the entrance.
Both festivals are rather dangerous and now and then climbers die when they fall.
This is a river cave, and it is possible to get boat trips through the darkness for up to a few kilometers The tourist route through the cave is 3,000m long and shows numerous big chambers with extraordinary speleothems and the river cave. The biggest chamber fits 1,000 visitors and is used for folklore performances.
Lot of small Chinese restaurant in front of the main entrance.
In Jianshui, hotel in front of bus station.
No camping area