Listed as one of the most beautiful caves of Halong Bay, Thien Cung Cave was gifted with such a complex structure with many chambers and high ceilings. A great number of stalactites and stalagmites are specially shaped in weird shape which is considered the greatest charm of Thien Cung Cave. The lights inside the cave make the whole interior even more dreamy, luxury and mysterious.

The cave is located in the southwest of Halong Bay, 4 km away from Dau Go Island, measured 10000 square meters in width. Coming to Thien Cung Cave, you'll have to go through a path that's covered by thick forest on both sides. Once you've entered through a narrow gate, the whole magnificence on the inside will welcome you lavishly with sparkling stalactites. 

The cave is related to the legend of the marriage of King Dragon and a young lady named May (Cloud). According to the legend, the cave was the place the wedding took place, lasted for seven days and seven nights. 

Going out of Thien Cung Cave, we have the sensation of just watching a unique, meticulous, interesting fine-art museum which is made by nature, beyond the imagination, ability, and intellect of man.

Nowadays, entering Thien Cung Grotto, visitors can gaze party sceneries in the setting of stalactites and stalagmites inside. The grotto has been discovered recently by explorers. Thien Cung Grotto is considered as one of the most beautiful caves of Halong Bay.