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NO wonder the sea is so salty, because the BEACH is the No.1 fantasy sex location for lust-addled Brits.

That’s according to a scorching-hot new survey, which discovered that more than half us have enjoyed a horizontal flip-flop on the sand.

And romps on the shoreline beat off stiff competition from other saucy nookie spots, including swimming pools and airplane toilets!

Sex expert Tracey Cox says: “Taking sex outside turns tired, routine acts into ultra-charged erotic thrills.

“In the safety of your own