West Islip runs out into canals and creek channels, and on a late-August evening a whole street can smell of cut grass and low tide at once. lawn island concepts works those blocks — mowing, trimming, edging and general lawn upkeep on properties that sit near the water and know it. Turf by the channels takes wind, full sun and a salt push after every big blow, so it gets kept dense on purpose, thick enough to hold color into fall. A yard down here ought to feel like the front porch of a summer that hasn't ended yet. That's the aim, week after week, house after house.