Island in the Indian Ocean

There's beautiful beaches all around this island. And, there's nobody around. Each time we found a beach, we had it all to ourselves. The water was warm, it was very nice. However, the sun was burning. We didn't spend the whole day on the beach. There were dunes, crabs, (one of the beaches was full of dead red crabs, totally normal a local told us, part of their life cycle). One time, at another beach, the waves were a bit strong, it was hard to swim in there. There was a huge lagoon, really beautiful.

Well, nice beaches, lovely, I would say.