Tourists visiting popular surf beaches in Western Australia have been warned of a significant "radiation risk" after a study revealed that nuclear fallout still lingers from the 1950s.
The Montebello Islands, or 'The Montes', are located just 80km off the coast of Western Australia. Today, the scenic, white sand beaches are part of a conservation area, but seventy years ago, they were the site of three British nuclear bomb tests.
Operation Hurricane and Mosaic (Parts 1 and 2) have left a lasting legacy on the history of the islands. Yet, the invisible aftereffects have been made clear by a four-year study from Edith Cowan University.
More than half a century later, the marine scientists say they have discovered that "there remains a radiation risk to marine life and tourists."
In a press release by the university, hundreds of sediment and beach samples were shown to still be highly radioactive.
"We have detected levels of radionuclides from the nuclear tests above what would be considered a background reading, or levels that you might get from the sand at your local beach," says PhD student Madison Hoffman.
As a marine reserve, the islands are dedicated to the preservation of 150 varieties of protected coral and over 450 species of fish and other delicate forms of sea life. Hoffman says the scientists will go on to see how the nuclear material might be affecting these animals.
On a more pressing matter, the study wants to bring the risks to the attention of tourists.
Due to the high radiation levels, visitors are currently encouraged to keep their trips to periods of less than an hour a day. On neighbouring islands there are camping sites, and the waters are frequently visited by snorkellers and surfers.
Boat operators run tours out of nearby Karratha and Onslow for
