The opening to Dai A Cave. Photo: Jungle Boss

The caves of Dai A, Over and Pygmy are part of the Vom cave system in the ecological restoration zone of Phong Nha - Ke Bang National Park.

The Dai A Cave (previously known as Tiger cave) stretches 1,616 meters in length and reaches as deep as 46 meters from its opening, which measures over 50 meters in diameter.

The Over Cave is located 100 meters from Tiger Cave, running 3,244 meters in length and 104 meters in depth with the widest section measuring up to 125 meters in width.

Meanwhile, Pygmy Cave is the smallest of the three, stretching only 845 meters in length and 94 meters deep.

The caves are surrounded by primeval forests boasting high biodiversity and scenic landscapes.

Adventure-seekers taking part in the upcoming tour will trek 20 kilometers across the forests and caves over the course of three days and two nights.

The tour’s itinerary will be submitted to the People's Committee of Quang Binh Province for approval, and is expected to become available as early as 2018.

The Phong Nha-Ke Bang National Park is a UNESCO-recognized World Heritage Site situated in a limestone zone of 2,000 square kilometers in central Vietnam.

The park is famous for hosting the world's biggest known cave of Son Doong, which is part of two massive karst regions with 300 caves and grottos.

Members of the survey team take a photo inside Dai A Cave. Photo: Jungle Boss

The opening to Pygmy Cave. Photo: Jungle Boss

By Nhu Y
(Source: Quang Binh Newspaper)