| Answer | Crossword Clue |
|---|---|
| MAIN | Water route |
| SEALANE | Water route |
| SEAWAY | Water route |
| SEALANE | Water route. |
| SEALANE | Established water route |
| waterway | body of water as a route of travel |
| waterways | A river, canal, or other route for travel by water |
| sinkhole | A cavity in the ground, esp. in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground |
| sinkholes | A cavity in the ground, esp. in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground |
