| Answer | Crossword Clue |
|---|---|
| SEAMIST | Hazard to navigation |
| EDDY | Hazard to navigation |
| HAZE | Hazard to navigation |
| BERG | Hazard to navigation |
| ICE | Hazard to navigation |
| SHOAL | Hazard to navigation |
| FOG | Hazard to navigation |
| FLOE | Navigation hazard |
| REEF | Navigation hazard. |
| FOG | Navigation hazard. |
| REEF | Navigation hazard |
| SHOAL | Navigation hazard |
| ICEBERG | Navigation hazard |
| BERG | Navigation hazard |
| DENSEFOG | Navigation hazard |
| GALE | Navigation hazard |
| MIST | Navigation hazard |
| FOG | Navigation hazard |
| ICE | Ship navigation hazard |
| BERG | Arctic navigation hazard |
