I want to thank you for the information you provide on your Web Site. I printed all the pages out, and took them with me for reference. It really appreciate your insights, and how much you helped us get to know the island better. Someone told us it was the foundation for a restaurant, but that seems unlikely from the way it was laid out. Also didn't really look like it was poured as a breakwater either.
Snorkeling is nice at Savannah Bay at high tide.
The wall was constructed by Ronald Webster, former chief minister, who's only purpose was to divide his property from a neighbour. If you notice, the wall turns in towards the land at the most easterly tip. This is the eastern boundary of Mr. Webster's property. The other boundary is near to the beach on the opposite end of the wall. It usually takes the form of a single stalk about a foot high, with a single yellow flower at the top.