The grotto of wooden stakes cave on the Island of Wonders (Han Dan Rd), consisting of three huge halls. In one of them in the XIII century were kept sharpened stakes, collected here for the battle of the river Bandung (they blocked the river, thereby impeding the advance of the enemy fleet). Hence the name of this cave.

The grotto of the Heavenly Rest – rectangular cave with a length of about 250 meters. This cave is very beautiful, lots of stalactites and stalagmites bizarre decorate it.