I saw this man, down on the rocks below Upolu Airport, collecting Opihi. Opihi is the Hawaiian word for limpets, and they are a prized food for the locals. Gathering them though is not an easy task. For one thing, it takes place at the water line. Opihi pickers are guaranteed to get wet and have to take great care not to get washed out to sea. One or two seem to disappear every year.
The Opihi also have to be taken while they are feeding and relaxed. Otherwise they will be so firmly adhered to the rocks that no amount of prying will loosen them.
Graham's Island 
Gosh, very particular conditions, then.
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Quite, and those rocks are slippery too.
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There’s absolutely no need for anyone to put their lives in danger so that I can eat limpets, Graham. It’s no hardship to me to go without xx
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They’re usually getting them for themselves. Many people eat them immediately. Ironically, and sadly, right after this posted, I read about someone on the east side of the island who was after Opihi and drowned when he was washed out to sea.
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I’ve seen the same kind of thing in the Algarve and it can have tragic consequences xx
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I’m sure they think it won’t happen to them, but all it takes is one wave.
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