Phong Nha-Ke Bang National Park (Vietnam)

Introduction

Inscribed as a UNESCO World Heritage Site in 2003, Phong Nha-Ke Bang National Park fascinates with its largest cave in the world. But the site also offers underground chambers resembling cathedrals to explore, including Hang Toi (the Dark Cave), Hang En, and Thien Dong (the Cave of Paradise), each more enchanting than the next.  

Thien Dong - Paradise Cave

Hidden amidst wooded karst peaks lies a breathtaking 31 km long underground network, though most visitors only explore the first kilometer. Its impressive scale unveils a cathedral-like space dotted with towering stalagmites and stalactites resembling otherworldly creatures, accessible by grand wooden staircases. For the best experience, an early visit is recommended to avoid the midday crowds, where tour guides shepherd groups with megaphones.
Paradise Cave is located about 14 km southwest of Son Trach. Electric buggies are available to transport visitors from the parking lot to the entrance 1 km away, with a one-way fare of 15,000 dong or a round-trip fare of 25,000 dong per person.
Good to know

• Entrance fee: Adult/child under 1.3 m 250,000/125,000 dong; 7:30 AM to 4:30 PMThe best time to visit Paradise Cave is during the dry season, from March to September.
• The cave is open from 7:30 AM to 4:30 PM.

Hang En

Hang En is a huge cave located near the famous Hang Son Doong. Both were immortalized in a National Geographic photo report. An adventure to Hang En begins with a trek through dense jungle, valleys and the minority village of Ban Doong, an isolated community without electricity or roads. Spend the night in a campsite set up inside the cave or stay in the village. Reservations for these expeditions are made through Oxalis Adventure Tours or your local accommodation provider.
Good to know

• Best Time to Visit: Hang En is best experienced during the dry season, from March to September.
• Cave Hours: The cave is open for exploration from 7:30 AM to 4:30 PM.

Hang Toi – The Dark Cave

Hang Toi is the caving experience everyone talks about!
The adventure begins with a thrilling zip line 400 metres above the water, followed by a swim to access the inside of the cave. Once inside, you will explore a passage of absolute black, lined with sticky mud. Leaving the cave, a peaceful kayak ride will take you to a jetty where new thrills await you with another zip line above the water.
Good to know

• Best Time to Visit: Hang En is best experienced during the dry season, from March to September.
• Entrance fees : from 700,000 to 1,000,000 VND per person