Summer evenings at Whalom Lake still carry a little of the old carnival feeling — the water flat, the air warm, somebody's lawn newly cut across the road. Gatsby Grounds Company, Inc. keeps that side of the season running with weekly mowing, sharp borders, trimming, mulched beds and cleanups as the year opens and closes. Then the lake stiffens over, and the same company is out plowing drives, clearing walks and salting steps before daylight. A property looked after all year long has a way of looking effortless, which is the entire trick of it. Lunenburg simply makes you earn that twice.