Bring the bug spray. It's a lot cheaper at home than on the island. I was there in August and we weren't bothered by bugs during the day, but I noticed after the first night there that I was getting bites on my legs while we were eating dinner. Many restaurants have sand floors.
One night, we ate at a restaurant a few blocks inland from the water. I had forgotten to spray myself and I got eaten alive in the first 5 minutes at this place. Obviously, this must happen often there, because the staff was able to offer me a large can of bug spray. The problem got better after I doused myself with the spray.