See what it's like to camp inside a cave with it's own beach and lagoon. So tall that it can hold an entire block of NYC skyscrapers. Hang En Cave in Vietnam's Phong Nha-ke Bang National Park is quickly becoming one of the must-see natural wonders of the world.
Phong Nha Ke Bang National Park, Vietnam is one of the best karst cave structure in Asia, if not the world. Situated in the north central Vietnam region of Quang Binh Province, it is easily accessible via the Ho Chi Man Highway. With numerous caves, inclu
Photograph Hang Son Doong skyhole by john spies . The Son Doong Cave in Vietnam is the biggest cave in the world. It's over 5.5 miles long, has a jungle and river, and could fit a 40 story skyscraper within its walls. It was discovered by modern man 5 years ago.