Four Mile Beach, Port Douglas. Photo: Glenn Hunt

Two large crocodiles have been spotted near popular swimming beaches in Queensland's tropical north.

Two beaches including one in tourist hot spot Port Douglas, north of Cairns, have closed over the past fortnight after crocs were spotted near swimming areas.

"We're letting people know that there's been recent sightings and it's their choice whether they wish to swim or not," Surf Life Saving North Queensland regional manager Colin Sparkes said on Tuesday.

Ellis Beach, north of Cairns, was closed on Monday after a beachgoer reported seeing a three metre reptile.

Advertisement

And Four Mile Beach in Port Douglas was closed for a day earlier this month after a four metre croc was spotted.

"He swam along Four Mile Beach, which is your premier tourist beach in north Queensland, so that caused a bit of a stir," Mr Sparkes said.

"Once they're in the open water there's not a great deal you can do other than monitor their movements."

Both beaches have since reopened with extra signage warning to swim between the flags and keep watch.

Here is the original post:

Two crocodiles spotted near north Queensland beaches