Related Clues:

• Place for scuba diving
• Old MacDonald's song mate?
• Countertrend
• Site of many a shipwreck
• Scuba venue
• *Cal ___
• Certain air current
• Scuba site
• Coral mass
• Coral --
• Swirl of water
• Boat-bottom bumper
• Yachting hazard
• Possible result of pulling the plug
• Bathtub swirl