Out on Okaloosa Island the sea oats all lean one direction and the anglers on the pier have been fishing since before the streetlights blinked off. Cast Away Landscapes LLC keeps lawns on both sides of the water in Fort Walton Beach, where salt spray and quartz sand set the terms for anything that grows. Mowing, edging and trimming on a regular route keeps a yard from surrendering to sandspurs and drifting seed. Walks get blown clear and every bed and driveway is left with a clean margin. Green grass a few blocks from the Gulf is a small act of stubbornness, worth doing well.