Down at Westport Point the masts tick in their slips and the light off the harbor stays late into a July evening. Harbor Lawnmower Services keeps the grass in step with that long stretch of summer — mowing on a steady rotation, edging along walks and drives, string trimming where the mower cannot reach, and cleanups at either end of the year. Salt air is hard on a lawn, and coaxing green out of sandy South Coast ground takes patience and a sharp blade. The reward comes when the machine shuts off and the yard sits quiet and even, striped down to the last corner. Autumn turns the work to leaves, cleared off before the damp weather sets them in place.