The bobcat clears its throat at first light, pruners click their way down a hedge line, and a stone is set, lifted, and set again until a hand agrees it sits true — that is a Crosswater morning up-island. The work runs the whole range: design and site planning, weekly mowing and fine gardening, irrigation, stonewalls and walkways and patios, vista pruning and selective tree work, wildflower and native-grass meadows, plus plant material grown on at their own small nurseries off Moshup Trail in Aquinnah and Tabor House Road in Chilmark — and, when weather closes the roads, the plow blade that opens a drive back up. Aquinnah asks a great deal of a garden: salt riding in on the wind, sandy ground running out toward the clay cliffs, light that comes off the water and lands on everything at once. The satisfaction is in what stays behind after the trucks pull out — a terrace that lies flat and level, a meadow throwing cosmos and coreopsis from May to October, a lawn cut to a clean edge, a driveway scraped bare and passable before the household stirs.