Godrevy: great waves, polluted waters | Photo: Alice Rosen

Surfers Against Sewage have issued a serious warning regarding recent sewage discharges at Godrevy, one of the most popular surf spots in Cornwall, England.

The British non-governmental organization has been warning the surfing community for the alarming number of sewage spills in the country, but the latest threats can put in danger the health of beach users, especially in summertime.

South West Water, the company which provides water for Cornwall, confirmed that "unfortunately, during periods of intense rainfall, the system can sometimes become overloaded."

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Barrel jellyfish: it weighs 20 kilograms

A 20-kilogram barrel jellyfish has had a close encounter with an environmentalist and his surf dog, in the Percuil Estuary, in Cornwall, Wales.

Matt Slater, marine conservationist at the Cornwall Wildlife Trust, was swimming in the Percuil Estuary with his dog, when he spotted a large "Rhizostoma pulmo" just a couple of meters underwater.

"These creatures are incredibly beautiful when you get a close look at them. The tentacles really look like soft coral, and round the edge of the jellyfish's umbrella like bell there is a deep blue line punctuated every twenty centimetres or so with a tiny dot, a sensory statocyst," Slater tells the Cornish Guardian.

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Clever Buoy: it detects sharks, not people

A joint-venture formed by Optus, Google and Shark Attack Mitigation Systems has developed smart ocean buoys that detect shark-like objects and send real-time valuable information to lifeguards on the beach.

The Clever Buoy is still a prototype, but the project promises to improve safety for all surfers and beachgoers worldwide. The advanced shark detection technology uses new sonar technology to detect shark-sized objects in coastal waters.

When detection is made by the Clever Buoy, an alert will be sent to relevant audiences using Google+ circles, via the Optus Network. It currently detects a shark-like object of two meters or more in length.

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