Le Morne, Mauritius.

"With over 160 km of beaches, you won’t need to go far to find a sunbathing spot in Mauritius; but if you’re looking for a more secluded cove, you’ll need to head to the south of the country," said Reigo Eljas, UK & Ireland Country Director at lastminute.com.

"With crystal-clear water, palm trees, and a wide expanse of white sand, Le Morne is one of the most beautiful — and remote — beaches on the island."