No guarantee at Smuggler’s.   There are lounges/umbrellas at Long Bay, Beef, not sure if they are available to rent or only for folks on the ship excursion there.   Multiple vendors/beach restaurants rent lounges/umbrellas at CGB. If you’re going on your own I’d suggest CGB to be safe…It can be busier, but it is still a nice beach with typically calm water and public restrooms…