Bo Hon Island

Sung Sot Cave (Surprise Grotto)

Location Situated in the centre of the UNESCO-declared World Heritage area, the Sung Sot or Surprise Grotto is on Bo Hon Island, and is one of the finest and widest grottoes of Halong Bay. Ascending to the grotto, the way is covered by trees and foliage, and consists of great paved stone blocks. Sung Sot Cave