🇻🇳Vietnam
Dark Cave
Dark Cave, located in Quang Binh Province, Vietnam, is a notable limestone cave within the Phong Nha-Ke Bang National Park. It stretches 5.8 kilometers in length and features a subterranean river, along with formations such as stalactites and stalagmites that are typical of karst landscapes.
More about Dark Cave
Discovered in 1990, Dark Cave is part of a UNESCO World Heritage site. The cave can be accessed via a zipline or kayak, offering a unique entry experience. Inside, visitors can explore the muddy sections and swim in the cool water. Protective equipment and guided tours are recommended due to the cave's challenging terrain and to ensure safety.