THE MAP GRID SQUARES ARE 30M X 30M. THE LARGER PERIMETER OUTLINE SHOWS THE AREA WHICH IS ABOUT NORMAL TIDE {AND MOST STORM SEA} LEVELS. THE INNER PERIMETER {GREEN} SHOWS THE AREA WHICH IS HIGH ENOUGH ABOVE WATER TO SUPPORT VEGETATION. MAXIMUM DIMENSION {VEGETATED} IS 150 METRES X 270 METRES
THE RED ARE EXISTING HUMAN STRUCTURES, MAINLY HOUSES, LIGHTTOWER AND CONNECTING BOARDWALKS.