Great photos, followed by drone footage.
https://vimeo.com/121736043Take an otherworldly journey through Hang Son Doong, the world's largest cave, by both ground and air.
Filmed near the entrance and the first and second dolines (skylights) which are 2.5 and 3.5 km inside the cave respectively.
Canon 16-35mm f4
DJI Phantom 2
GoPro Hero 4 Black