Related Clues:

• Boat bottom bumper
• Barn add-on
• Atoll component
• Come down in buckets
• 11, on the Beaufort scale
• Shipwreck cause, sometimes
• Water hazard
• Snorkeler's haunt
• Offshore hazard
• Part of a sail
• Seaman's worry
• Snorkeling site
• Marine formation
• Rampage
• Snorkeling locale