Across
- 3. doors
- 7. enormous
- 10. pass (through)
- 11. necessary
- 13. ocean
- 14. through the
- 16. to enter
- 17. hours
- 18. connects
Down
- 1. repeats itself
- 2. electric motors
- 4. gates
- 5. after
- 6. use
- 8. period
- 9. boat
- 10. process
- 12. divided
- 14. to open
- 15. are in
- 17. there are