reef is a crossword puzzle answer that we have spotted 18 times. Coral Atoll Shorten sail ridge of coral Coral structure Coral formation Shipping hazard Hazard for ships The Great Barrier Aquatic rock ridge Underwater rocky chain Rocks in shallow water Reduce a sail's surface Underwater coral structure Coral ... (snorkeling spot) Rocky ridge near sea surface Bank of jagged rock near the surface of the sea A ridge of coral just above or below the surface of sea