Even overcast days at Chatham Bars Inn feel sunny. First, there’s the setting: a graceful, 1914 building overlooking the Atlantic, surrounded by quiet, individually decorated (and kitsch-free) cottages. Second, there are the activities: croquet, tennis, biking, rides in the property’s antique cars, or, for kids, shoreline critter hunts, pirate visits, and karaoke. The nightly candelit dinners of local seafood at the water’s edge are almost absurdly romantic. Few properties on Cape Cod manage to balance kid-friendliness with that kind of genuine excellence. This one does—even when it rains.