If the thought of crocodiles makes your skin crawl, this is probably not for you.
Up to 50 crocodiles have been spotted sunbaking along a river bank in eerie vision captured in the Northern Territory.
Drone footage from the Daly River, south of Darwin, shows the creatures lazing out under the sun side-by-side.
Fittingly the viral video was taken at a section of the river known as Alligator Head, while the crocodiles looked to warm their bodies up.
Crocodile management experts put the huge gathering down to low tides, a healthy surrounding ecosystem with lots of food, and a recent drop in temperatures.
The crocodiles use the warmth of the water to heat themselves during winter nights and then use the muddy banks of a river and the sunshine throughout the day.
The footage comes as one man is set to embark on a frightening mission to swim with the creatures across Darwin Harbour in the name of charity on June 24.
Michael Wells told 9NEWS he is looking to raise as much money as he can for breast cancer research by swimming across the Harbour in a specially-built suit while being croc-spotted by a colleague on-land.
“This is all about losing my sister last year from breast cancer and me thinking I’d like to do something for women who suffer breast cancer,” he said.
“I came up with the idea of swimming across Darwin Harbour breast stroke to raise money for breast cancer research.
“I’ve got a professional croc spotter – I didn’t know such a profession existed.”
He plans to swim on a neap tide, when the tidal flow is at its lowest, and if a crocodile is spotted during the swim he’ll be pulled out of the water and into his escort. boat.
© Nine Digital Pty Ltd 2018