?Welcome to the largest cave in the world, Hang Son Doong. This shot was taken just beneath Hang Son Doong's first doline, aptly nicknamed 'Watch out for dinosaurs'. The landscape inside this cave is truly surreal. The doline is large enough to fit a jungle, its opening being several hundred meters wide. This forest harbours few animals apart from the birds that can come and go, but is rife with insects and bugs. Several new species have been found inside Hang Son Doong, and there are .. Vietnam Voyage, Vietnam Tours, Vietnam Travel, Parc National, National Parks, National Geographic, Yellowstone Nationalpark, Laos, Cave Tours