An excited helicopter pilot crashed after swooping too low to look at a crocodile he had just spotted.
He escaped with cuts and bruises but his passenger suffered critical injuries in the accident on a remote beach near Darwin in Australia's Northern Territory.
The pilot told rescuers he was flying along the beach from where the pair had camped and turned to observe a crocodile then crashed.
After starting the turn the next thing he remembered was being upside down in the mud.
The pilot dragged his passenger to the safety of the shore, away from crocodiles, then buried the man in the sand up to his neck in an attempt to prevent him from developing hypothermia.
A CareFlight rescue helicopter and doctor located the crash in the dark and flew the passenger and pilot to hospital in Darwin.