The website also published a 6-minute video capturing the mighty scenery in the cave.

The article reported that Son Doong was discovered in 1991 but the first exploration of the cave was made in 2009. It is located in Phong Nha-Ke Bang National Park, about 500 kilometres from Ha Noi, the capital city of Viet Nam, The cave, the world’s largest natural cave, is 4.8 kilometres long, 201 metres high and 149.3 metres wide. It is home to a network of underground rivers, tropical jungle and even beaches.

US photographer Ryan Deboodt was quoted as saying that the cave is an alien planet in Earth.