Located on Dau Go island chain, about 300m from Thien Cung cave. Dau Go is a large, beautiful cave with mossy antique style, the French called "Cave of wonders". The cave has a diverse fauna and flora. Due to the wide opening of the store, the humidity in the cave is high and the effect of sunlight can be seen immediately on the diversity of the flora, especially mosses and ferns of wood tree. This is a distinctive feature compared to many other caves in Ha Long Bay.