It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
A naval ship was forced to change course in order to avoid the cluster of buoyant rocks, located 1,000 miles off the New Zealand coast.
The unusual phenomenon was probably the result of pumice being released from an underwater volcano, experts said.
One navy officer described it as the "weirdest thing" he had seen at sea. Lieutenant Tim Oscar told the AFP news agency: "As far ahead as I could observe was a raft of pumice moving up and down with the swell.
"The [top of the] rock looked to be sitting two feet above the surface of the waves and lit up a brilliant white colour. It looked exactly like the edge of an ice shelf," the officer said.