Related Clues:

• Boating hazard
• Great Barrier, e.g.
• Reef growth
• Pinkish yellow
• Site of a shipwreck, perhaps
• Reef type
• Lagoon creator
• It might be just below the surface
• Marine reef builder
• Reef made of skeletons
• Coral group
• Yellowish red
• Lipstick shade
• Snorkeler's heaven
• Pinkish red