Bo Nau Cave (Pelican Cave) is located on the southwestern Halong Bay. It's about 13 kilometers far from Bai Chay Tourist Wharf and 2-3 kilometers to the southeast of Trong Mai Islet.

Bo Nau Cave

The name Bo Nau is associated with the fact that pelicans often take shelter here. Located in a complex, including Sung Sot cave, Luon cave, Ti Top Island, and Trong cave; however, Bo Nau Cave has not yet been exploited, therefore, the cave still retains its pristine.

The mouth of Bo Nau Cave is quite wide with the size of 5-7 meters. It’s in the shape of arch and has many stalactites falling down from the ceiling. Sitting in the cave, you can have a large view of the bay and remote island as far as your eyes can see, which seems like standing in the monster’s mouth with sharp teeth and seeing magnificent scenery outside.