| Answer | Crossword Clue |
|---|---|
| SKIING | Traveling between the poles? |
| RIVERSOFAMERICA | A sequence of these snakes between two of the grid's corners, traveling horizontally and vertically |
| packets | A ship traveling at regular intervals between two ports, originally for the conveyance of mail |
| PLYING | Traveling regularly between two points. |
| interplanetary | Situated or traveling between planets |
| intercity | Existing or traveling between cities |
