A shark has been spotted within a netted swimming enclosure at a Far North Queensland beach in what lifesavers have described as an "extremely unusual" occurrence.
The enclosure is designed to protect swimmers from jellyfish, but yesterday the presence of a much larger visitor forced the closure of Palm Cove beach to swimmers yesterday.
Cairns Surf Life Saving Club lifeguard Bob McPhail said a member of the public initially noticed the shark's fin while swimming in the net.
