A man has been killed by a crocodile while attempting to cross the “notorious” Cahill’s Crossing near the Kakadu National Park in the Northern Territory.

The 47-year-old man was attempting to wade across the river with two women, when he disappeared under the water about 4pm on Thursday.

After the women raised the alarm, police launched several boats to search for the man. His body was discovered about two kilometres downstream.

He was attacked by a 3.5-metre crocodile which killed him, police said, who described his actions as foolish.

“Cahill’s Crossing is notorious for crocodiles and to walk across it to me is just foolishness,” said Superintendent Bob Harrison to Sky News this morning, adding that signs had been erected at the spot warning people not to enter the water.

“Unfortunately they did, and this was the result.”

A survey of the East Alligator River counted 120 crocodiles in a 6km stretch just south of Cahill’s Crossing. It’s also where last year a woman managed to shoo away a croc by clapping a thong against her hand.

Photo: Kakadu National Park.