Related Clues:

• Diver's place
• Site of a wreck, perhaps
• Where a yacht might run aground
• Ocean obstacle
• Sea hazard
• Gilligan's Island feature
• Snorkeling destination, perhaps
• Body of water
• Hazard to navigation
• A kind of knot
• Boating hazard
• Great Barrier, e.g.
• Site of a shipwreck, perhaps
• Shallow sound
• Lagoon creator