Situated in the centre of the UNESCO-declared World Heritage area, 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. At the deepest point of the grotto, a "royal garden" appears with a clear pond and a seemingly fascinating landscape of mountains. Many birds and plants (benjamin figs, cycads and centenary banyan trees) live here. On nice days groups of monkeys might arrive in search of fruit. It is situated in the central tourism centre of the Bay, as well as Ti Top Beach, Bo Nau Grotto, Me Cung Grotto and Luon Grotto. French named it "Grotte des surprises" (Grotto of surprise). At the side of the entrance, the rock seems to form the shape of a horse with a long sword. Legend has it, that after having defeated the An aggressors, Thanh Giong (Saint Giong) helped the population to chase away evil spirits and demons. After this feat, Saint Giong flew to heaven, leaving a stone horse and sword to continue to keep the demons away.