Grotto of wooden pillars - a cave on the Island of Miracles (Dan Han Guo), consisting of three huge halls. In one of them in the XIII century kept sharpened stakes, gathered here for the Battle of the River Bahdang (they blocked the river and thus impede the progress of the enemy fleet). Hence matter and the name of this cave.

Grotto Heavenly Peace - rectangular cave length of about 250 meters. This cave is very beautiful, a lot of stalactites and stalagmites bizarre decorate it.