Me Cung Grotto (Bewitching Grotto) is situated on Lom Bo Island, about 2 kilometers far from Ti Top Island to the southwest.
The mouth of Me Cung Cave is on the height of 25 meters above the sea level. The space inside is divided into many small chambers. Passing the narrow entrance, visitors will enter a world of wonder with various stalagmites and stalactites in living forms of genies and wild animals. Sunshine from the outside makes the cave more mysterious.
Beside the magical beauty inside, Me Cung Cave is also an archaeological relic. The ground of the cave was formed by 1.2 meter think layer of fossilizedshells. In the cave, archaeologists found a fossilized animal's skeleton and many evidences of pre-Halong Culture dating around 7.000 – 10.000 years ago.