Question

Statemnt 1 Family holidays crowds have since moved away from the beaches of Florida.

Statement 2 The Caribbean islands have thus become a not destination for young couples.

Which statement is correct

Answer 1

Statement 1 (I think)

I don't know what you're trying to ask specifically, but if you're trying to ask which is more gramaticallt correct, then it's Statement 1.

The ending of statement 2, "... become a not destination for young couples." makes no sense to me as it should have been something like, "... become a destination for young couples to not go to."