In it, he shows a pair of wildlife guards holding and extracting the crocodile from Buffalo Creek, just north of Darwin.
It was only a few hundred meters from a popular fishing spot.
“I’ve seen a lot of people get in waist-high water and throw nets around, yes that’s what’s lurking in the water around here,” Mr Langer said.
“It will take you, and it will eat you, so be careful when you go and rummage around in the water of Buffalo Creek.”
Snappy the little baby crocodile found in Brisbane park esky
Rangers estimated that the crocodile measured about 3.5 m, but it eventually clocked at 3.78.
NT Parks and Wildlife maintains several crocodile traps in populated areas in the north of the state, but people are encouraged to remain vigilant around the water and not assume they are safe to swim in.