Related Clues:

• Coral constructions
• Locations for some schools
• Keel scrapers
• Coral structures
• Shipwreck sites
• Radar may track them
• Florida Keys features
• Violent weather
• Subjects of watches and warnings
• Nautical hazards
• Snorkeling destinations
• Coral groups
• See 19 Across
• Coral masses
• Shoals