Hi again Bob;From your description you went down Barn hill road where you turn of rte 28 by the sou'wester rest.to hardings beach in West Chatham,you turned on Barn Hill rd. across the road from my sons house.I know you can get to the light house which a private summer home by walking the beach but to many it is a long hard walk in the sand.(I'm showing my age )I have walked it a few times and is time consuming.the reason I recomended the other end of town was to save some time to see more lights.Bill O'Brien