This may sound strange, but I have a phobia about walking barefoot in the water. Are their stingrays? Do you have to shuffle your feet to avoid them? I have been in several oceans, Gulf of Mexico, etc, never had a problem. But have always been creeped out about stepping on something on the ocean floor...... Any worries on 7 mile beach? Should I bring water shoes? Does staff warn about any critters? Thanks for any info.....43 more days!!!