My husband and I biked as far as "Journey's End" resort in June. Just north of Captain Morgans. The trail (dirt road) ends there, but then we found out you can switch over and bike on the beach from there. There has been some contention about that...whether the beach strand is "private" or public. By law, the tide line/beach is public, but there has been some problems in the past, I heard. Anyway, after that I'm not sure about the lay of the land. A bit of advice: if you do bike, start out EARLY, like 6am. After 10/11am, it is beastly hot and there's not a whole lot of shade up there, at least not on the road.