This is a great video that shows just how large this cave opening is. Ryan Deboodt and his crew journey through Hang Son Doong, the world’s largest cave. Filmed near the entrance of the first and second dolines (skylights) which are 1.55 miles (2.5 km) and 2.17 miles (3.5 km) inside the cave respectively. Ryan Deboodt did a great job of filming and editing of his adventure. The aerial shoots were done with a DJI Phantom 2 while the ground shots were accomplished with a Canon 6D and a GoPro Hero 4 Black. The world is a magical place and you can feel that in this video.
Hang Son Doong from Ryan Deboodt on Vimeo.