Trouble in the world's influencer capital: They're rude, never say ciao and there's a three-hour wait for the best selfie. Have the preening hordes ruined Capri for good? JANE FRYER

The Grotta Azzurra, or Blue Grotto, is a vast sea cave - 200ft long, 80ft wide - set deep into the limestone cliffs at Capri's eastern tip.

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