But many people might not be aware of to what extent this can happen. Here is an extreme version where a whole beach was washed away in 1984 and returned recently.
http://www.mnn.com/earth-matters/wilder ... r-33-years
Lots of other items on line about it with other photographs, some showing the difference more sharply - just search for "Irish beach returns".
One I frequent quite often had part of it stripped down to the hardpack and the finds were good. A couple of days later the same part was back under a good 3ft of sand again.
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