On the South Fork the light comes off the ocean flat and silver, and Bridgehampton's old potato ground still runs open between the privet hedges and out toward Mecox Bay. Hampton Yards works that sandy, salt-touched soil: mowing and edging on a steady schedule, trimming along hedges, fences and drives, bed maintenance and mulch, and cleanups in spring and fall. Turf out here drinks fast and dries faster, and the wind off the water writes its own opinion into every lawn, so the route comes back often and pays attention. Late June, cut and edged, a lawn holds a particular green that only exists a few miles from the Atlantic. From Sagaponack and Water Mill over to Wainscott and Sag Harbor, the aim is the same — grounds that look effortless from the road.