| Answer | Crossword Clue |
|---|---|
| STRAIT | Navigable connection |
| SEAGATE | Navigable channel |
| SEAGATES | Navigable channels |
| SEVENSEAS | Earth's navigable waters |
| SHOALIER | Less navigable, maybe |
| ICEFREE | Navigable year-round |
| DEEPEN | Make navigable, maybe |
| ICEFREE | Navigable in winter, say |
| SEAGATE | Navigable access to an ocean |
| SEAGATE | Navigable opening to the ocean |
| SEAGATE | Navigable channel to open water |
| DEEPEN | Make more navigable, as a channel |
