
Dark and Light Cave (also known as Day and Night Cave) is located on the border of Halong Bay, Bai Tu Long Bay, and Lan Ha Bay. The cave is not only known for the impressive limestone structure in every corner, but also because of the interesting natural habitat. Few attractions are blessed with such awe-inspiring beauty and diverse ecosystem as Halong Bay, and the cave by day and by night is rightfully deserved as an inevitable part of its heritage. Traces of freshwater snail fossils are still found on the cliff, proving that the cave was inhabited thousands of years ago. Monkeys run in groups, Benjamin’s fig trees shade the landscape, and many orchids hang their fragrant flowers. Considered to be Sung Sot Cave but hides half a body underwater, the Dark and Light cave attracts tourists with its very primitive features.
Surrounded by a large limestone mountain near Cat Ba National Park, the islet system connects to the water through a 4 meter wide mouth. To explore Dark & Light Cave, instead of climbing tons of stairs like the others, kayaking, rowing or swimming are the only options for tourists to explore its true beauty. The water is rich in marine life with an abundance of shrimp, fish, crabs and cuttlefish. After wandering around for an exterior look, you can feel the art of natural stalagmites on the dome and cave wall with your own palm as you enter the cave. Quilting through the “tunnel” is an adventure in itself due to the very low natural light and the lack of artificial light to support the massive journey like the other caves. There is also a zipline service to explore the cave in a more exciting way. Passing through the cave, there is a marine valley surrounded by magnificent mountains. The scene is sure to impress you and your fellow travelers. Floating your kayak in the water to enjoy the calm surroundings will be an incredible sensation that you will never forget.
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