The former Coronation Street star, 27, put on a busty display in a plunging white bikini, made up of high-waisted bottoms and a skimpy top.
She showed off her incredible figure in the eye-popping ensemble as she relaxed on the beach with her friends on the Caribbean island.
Arianna wore her dampened brunette tresses loosely cascading across her shoulders as she cooled off with a dip in the sea.
She showed off her natural beauty for the sun-soaked beach day and accessorized her look with a shell anklet.