| Answer | Crossword Clue |
|---|---|
| ODER | Main waterway to the Baltic Sea |
| CRIMEARIVER | Certain waterway to the Black Sea? |
| ELBE | Major waterway, flowing to the North Sea |
| YSER | Minor waterway, flowing to the North Sea |
| ODER | River to the Baltic Sea |
| ODER | River to the Baltic Sea. |
