We stayed at Atlantic Oaks a couple of years ago and loved it! The sites weren't huge but it is one of the cleanest campgrounds we've ever stayed at. It backs up to the bike path that you can bike or hike for miles. We were there after Labor Day and stopped along all the shore points. There's hiking trails all over the place. On the bay side right near the cg is one of the premier spots for a sunset stroll. The Marconi site is pretty cool. A day trip to Plymouth is worth it, although if you're going during the summer months, traffic may put a damper on such a trip.