From ABC News, August, 2007:
You’re looking at a 30-mile stretch of shoreline north of Sydney, Australia. What was once waves of water turned into waves of foam that have not been seen at this Pacific beach for more than three decades. The foam engulfed an entire beach and half the nearby buildings, including the local lifeguard center. It happened at Yamba in New South Wales, Australia. Scientists say the foam is created by impurities in the ocean, such as salts, chemicals, dead plants, decomposed fish and excretions from seaweed.
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photos: Bill Counsell/Icon Images
thanks Linda Ardigo