Planning an August trip for vacation. we want to spend some time on cape cod. I've got a few days on a mooring at ptown, renting a car or jeep but looking for another stop on the bay to fill in a day or two. Maybe Plymouth? We're talking a 7 to10 day trip, current itenerary is haddam to Newport for one night, a couple nights somewhere in between, a few at ptown, one at cuttyhunk then home....suggestions?