Gold Coast lifesavers say a dead kangaroo has washed ashore at Queensland's Miami Beach.

Duty officer Kevin Dunne says it was a great day to be at the beach until the kangaroo appeared late in the afternoon.

He says it must have floated into the ocean from a nearby creek.

"I'd say, probably Tallebudgera Creek, where there's a lot of farms and properties further up there, so it's a bit unusual," he said.

"It's something that you don't see very often. We've had cows float up and dogs and things like that but definitely not kangaroos.

"I suppose the humorous part to come out of it is he would be a lot safer if he was swimming inside the flags I suppose.

"It got a bit of a gathering down there and there was a lot of interest.

"There really wasn't much happening on the Gold Coast other than the beaches being fairly well crowded but this will definitely be one we'll put in the diary."