The uniqueness of this cave is that it holds many different shapes of stalagmites and stalactites which hang from the high ceiling. The formations inside seemingly come alive when light is reflected from several water pools inside the cave.
Centrally located in Ha Long Bay, Sung Sot Cave is subordinate to Bo Hon island and one of the largest caves in the Halong area. Upon discovery by the French in 1901, it was dubbed the Cave of Marvels "grotto les suprices". The uniqueness of this cave is that it holds many different shapes of stalagmites and stalactites which hang from the high ceiling. The formations inside seemingly come alive when light is reflected from several water pools inside the cave.

100 Steps up
From the wharf, you climb about 100 steep stone stairs to the mouth of the cave, which lies 25 m above the sea level. This advantage point also allow you a stunning view over the World Heritage Site Halong Bay. Going down some 10 stone stairs, you reach the mouth of a cave.
An illuminated view inside
Inside the cave there have thousands of stalactites and stalagmites along the 500-meter paved passage. Light posts line the passage and serve as signposts and ornaments, illuminating various hidden shapes. The artificial additions may not be to everyone’s taste, but the space is impressive nonetheless.

Sung Sot Cave is partitioned into two chambers; the first one being similar to a wide theater hall. Many stalactites hang from the high ceiling, with numerous possible forms and shapes. A narrow passage leads to the second rooms, where a flow of light meets visitors. The ceiling rises 100 feet about your head and the floor space, big enough to hold one thousand people at a time measures an astonishing 110,000 square feet.
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.