If you ever wanted to feel like you're in James Cameron's 'Avatar', then you might just have to book yourself a trip to Vietnam.
Or you can just watch this drone footage captured by Beijing-based photographer Ryan Deboodt, traveled to the Hang Son Doong cave in Vietnam to document the sights in the world's largest cave in all its glory.
Filmed at two points 2.5km and 3.5km inside the cave, Deboodt's stunning footage of the barely touched environments almost seems unreal and like something that belongs in a sci-fi film. Thankfully you don't have to do all the climbing Deboodt did in order to enjoy it.
Via Vimeo