| Answer | Crossword Clue |
|---|---|
| RAPIDS | Hazard for river boats |
| ARKS | River boats |
| BARGES | River boats |
| STEAMERS | Mississippi River boats |
| ARKS | Flat-bottomed river boats |
| CORACLES | Small Welsh river boats |
| RAFTSMEN | Operators of river boats. |
| GONDOLAS | River boats or freight cars |
