Related Clues:
- Underwater hazard
- Miasma
- Poor visibility
- Reduce, as a sail
- Navigational hazard
- Snorkeling venue
- Visibility impairer
- Frequent London forecast
- Where ships may run aground
- Lagoon barrier
- Ridge of rock under surface of sea
- Chain of rocks near the surface of the sea
- Ridge of rock just under water
- Ridge near the surface of water
- It may come in a blanket