Qualla: Phong Nha – Kẻ Bàng National Park

Phong Nha – Kẻ Bàng National Park: Introduction

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit Doug Knuth from Woodstock, IL, CC BY-SA 2.0. On 10 December 1990 a young man from a village on the Sơn River pushed through the forest of the Kẻ Bàng plateau looking for agarwood, and stopped in front of a hole in the ground that was breathing. Cold air poured out of it. Somewhere below, water was moving fast enough to hear from the surface. Hồ Khanh did not go in. He turned back into the jungle, and in the years that followed he lost the place completely — a gap in the hills he could not find again for eighteen years. What he had walked away from was the largest cave passage on Earth.

Image: Doug Knuth from Woodstock, IL | CC BY-SA 2.0

Phong Nha – Kẻ Bàng National Park: What the Water Did to the Stone

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit Thang Nguyen from Nottingham, United Kingdom, CC BY-SA 2.0. The rock beneath Phong Nha–Kẻ Bàng is roughly 2,000 square kilometres of limestone, and it does not stop at the border — an adjoining block of about the same size lies in Laos, one of the world's great karst regions divided by a political line drawn long after the water finished ...

Image: Thang Nguyen from Nottingham, United Kingdom | CC BY-SA 2.0

Phong Nha – Kẻ Bàng National Park: Lost for Eighteen Years

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit The original uploader was BacLuong at Vietnamese Wikipedia., CC BY-SA 3.0. Hồ Khanh found the entrance again in 2008. The following April a British Cave Research Association team led by Howard and Deb Limbert followed him back to it, and between 10 and 14 April 2009 they measured what he had found. The main passage of Hang Sơn Đoòng runs more than five ...

Image: The original uploader was BacLuong at Vietnamese Wikipedia. | CC BY-SA 3.0

Phong Nha – Kẻ Bàng National Park: The Older Rooms

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit Thang Nguyen from Nottingham, United Kingdom, CC BY-SA 2.0. Sơn Đoòng takes the headlines, but the park is named for a cave people have been entering for centuries. Phong Nha Cave runs 7,729 metres, holds fourteen grottoes and carries an underground river nearly fourteen kilometres long; visitors arrive by boat up the Sơn River and are pe...

Image: Thang Nguyen from Nottingham, United Kingdom | CC BY-SA 2.0

Phong Nha – Kẻ Bàng National Park: A Corridor Through the War

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit Rod Waddington from Kergunyah, Australia, CC BY-SA 2.0. People have been leaving things in these caves for a very long time. Neolithic axe heads have come out of several. Ninth-century Cham inscriptions and terracotta sealings consecrating Avalokiteśvara were cut into the rock and left there. Dương Văn An brought the cave into Vietnam...

Image: Rod Waddington from Kergunyah, Australia | CC BY-SA 2.0

Phong Nha – Kẻ Bàng National Park: Langurs, and the People Who Live Here

Mon, 17 Aug 2026 00:00:00 GMT

Photo credit Genghiskhanviet, Public domain. Above ground the park holds ten primate species and subspecies, including François' langur and what is almost certainly the world's largest population of Hatinh langur and black langur — very likely the only population of either inside a protected area at all. Surveys have logged...

Image: Genghiskhanviet | Public domain