Create more beach where??? You can't create room on the ocean if there isn't any..
Some of the area between Royal Palm and Buccaneer had some brush and stuff. The beach at Royal Palm was somewhat created/changed with the hauling in of the big boulders.
Remember the old waterfront/beach in Philipsburg? There was a lot of sand hauled there to create that beach that people know today. Pretty sure it came when they dredged the harbour for the new cruise pier.