Croatia
Get the ferry from Trogir Riva to Drvenik Veliki or, better still, hire a boat and go to Uvala Krknjaš on the east coast of Drvenik Veliki Island.
It’s a deserted bay, apart from a couple of houses and a good local restaurant, and the water here is so crystal clear, you’ll never want to swim anywhere else again. Make sure you take your jelly shoes as it’s a fairly rocky beach.
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