Drone films inside the world’s largest cave
Hang Son Doong in Vietnam.
Ryan Deboodt made this stunning film near the entrance of the world’s largest cave. Shot close to the first and second dolines (skylights) which are 2.5 and 3.5 km inside the cave respectively this aerial view shows how gigantic this cave is. Sơn Đoòng Cave was found by a local man named Hồ-Khanh in 1991, and only in 2009 did the cave become internationally known after a group of scientists conducted a survey.