It is situated on the south-west side the
bay, 4 km from the wharf outside of Ha Long City.
The way to Thiên Cung is a perilous one, covered on both sides by thick forest.
After entering a narrow gate, the grotto’s 130-meter-long girth opens up. Getting in we are more astonished in front of the very animated and splendid
beauty which is made from stalactit...
