great point to start with the islands, however this "leg" of the island is only serviced by the ferry during the summer months.
the beaches are very much hit or miss, some of the more quiet beaches have alot of debris, as they are not maintained. as well as the main gas/eletrical lines is floating in one section of the beach on this side.
the nude beach is a cool option, if you're into that.
fall is a really good time to see this section of the island, but you have to walk from wards ferry drop off, and its a bit of a walk, and then you have to walk back.
bring a camera, and comfy shoes