Sơn Đoòng Cave: it looks like the biggest cave in the world

• Sơn Đoòng Cave: it looks like the biggest cave in the world

Swiss photographer Urs Tsilmann (Urs Zihlmann) made a five-day trip to the National Park Phong Nha-Kẻ Bàng National Park in the province of Quang Binh in Vietnam, where is the world's largest cave Sơn Đoòng Cave. Its size is truly daunting.

Sơn Đoòng Cave: it looks like the biggest cave in the world

Sơn Đoòng Cave The cave is so huge that it can fit a 40-storey skyscraper. Inside the cave formed a special climate and a private atmosphere in which clouds are formed.

Sơn Đoòng Cave: it looks like the biggest cave in the world

In the photo: spending the night in tents in the cave Sơn Đoòng Cave.

Swiss photographer Urs Tsilmann shares his impressions of his journey:

"I'm very lucky that I had the opportunity to go on a tour of the cave. As we approached the entrance of the Sơn Đoòng Cave, they saw the cloud that appeared out of the cave, and soared over the forest in the surrounding area. We had to go down 80 meters along the cliff with ropes and equipment. "

Sơn Đoòng Cave: it looks like the biggest cave in the world

"When you are standing on slippery ground inside a huge, dark caverns, you begin to realize how much it's amazing. You feel a tiny creature in this vast underground paradise of unearthly beauty. You feel as if Dad's a different world. "

Sơn Đoòng Cave: it looks like the biggest cave in the world

A researcher examines a cave.

The journey to the cave requires you to considerable physical preparation. The path to the cave takes half a day and runs through the insect-infested jungle. A few times, you will need to ford the river.

Sơn Đoòng Cave: it looks like the biggest cave in the world

Each year, the cave could not see more than 450 people. Tour operator Oxalis Adventures, which works closely with the government, is the only office that deals with the organization of excursions into the cave.

Sơn Đoòng Cave The cave was visited by fewer people than the summit of Everest. It is a miracle of nature.

Sơn Đoòng Cave: it looks like the biggest cave in the world

The researchers examine the huge dark cavern. The ground beneath their feet is very slippery.

Sơn Đoòng Cave: it looks like the biggest cave in the world

These images will allow you to assess the true extent of the cave.

Sơn Đoòng Cave: it looks like the biggest cave in the world

Tsilmann visited the cave in a group of more than 40 people in an organized photo-tour, inspired by news reports National Geographic.