Paradise Cave (Dong Thien Doung) was discovered in 2005 by local residents and later surveyed in detail by the British Cave Research Association. The exploration revealed that the cave stretches over 31 kilometers, making it one of the longest caves in Asia. Inside, countless stalactites and stalagmites of various shapes and textures create a breathtaking natural sculpture, resembling stone pillars, Roman columns, and delicate curtains of rock formed over millions of years.

The cave maintains a cool and comfortable temperature of around 20°C all year round. To preserve the delicate ecosystem, Vietnamese authorities constructed a 1-kilometer wooden walkway allowing visitors to admire the cave safely without disturbing its natural environment.

The name “Paradise Cave” was inspired by its heavenly beauty — when the lights shine on the shimmering limestone formations, the scene resembles a mythical palace carved by nature. For adventurous travelers, special adventure tours are available to explore the deeper, more untouched parts of the cave.

The cave entrance lies on a limestone hill, accessible by walking up stairs or taking an electric golf cart from the parking area below. The walk to the entrance takes about 10–15 minutes. Near the entrance, there are restaurants and a visitor service center offering full amenities for tourists.

A trip to Paradise Cave is often combined with a visit to Phong Nha Cave, located just a few kilometers away, making both caves a highlight of Quang Binh Province and one of Vietnam’s most popular natural attractions.