Amityville keeps one ear on the bay. Salt drifts up Ocean Avenue on the afternoon breeze, and the lawns here grow in sandy South Shore soil that drinks fast and asks for a careful hand — which is the work Long Island Lawn Whisperer signed on for. Mowing, trimming and edging on the creek streets and the blocks off Merrick Road, with the trimmer line held true where turf meets sidewalk. By June those yards stand even and deep green, and a freshly cut border catches the low light coming in off the water. It is a small thing and a good one: a village yard that plainly looks after.