Full-Screen and HD and take it away!
Stunning.
The location is Hang Sơn Đoòng (“Mountain River Cave”) in Vietnam, and the short’s creator is Ryan Deboodt. And with a bit of help from Laughing Squid, the two of ’em pretty much made my Sunday.
Attribution(s): “Generic Vietnamese Cave” provided by Shutterstock. Although it’s hard to call anything as spectacular as that “generic.”