Bo Nau Grotto
Location: Bo Nau Grotto or Pelican Grotto lies far from 2-3km southeast of Trong Mai Islet.
Characteristics: This vaulted grotto covers 200m2. The floor of the grotto is wide and flat but not deep and its wall features lots of stalactites and stalagmites. >>> Phoenix Cruise Halong
Bo Nau Grotto is one of the beauty grottoes in Halong Bay. At the entrance are three stones, looking like three fairies with their heads close to one another. Two men appear to be playing chess, with the third serving as a referee.