Two campers are recovering in Kununurra in the Kimberley in Western Australia after a crocodile attacked the tent they were sleeping in.

The couple are described as shaken but uninjured.

The couple, aged in their 30s, were camping on the banks of the Pentecost River, west of Kununurra, when they say a four metre saltwater crocodile attacked their mosquito dome tent in the early hours of the morning.

They somehow escaped to their car, but it would not start due to a flat battery.

The Department of Conservation and Land Management (CALM) says one of them then walked six kilometres to a cattle station to seek help.

The department's David Grosse says wildlife officers have now set a trap to try to catch the crocodile.

"If we are successful in catching it, it will be relocated to the Wyndham croc farm," he said.

In the meantime, CALM has renewed its warning to people to camp at least 50 metres away from the waters edge in crocodile infested areas.