Across
- 5. Move in water
- 11. Breathing tubes
- 12. Visual perception
- 13. Feeling extreme happiness
- 15. Measurement from end to end
- 16. With elegance
- 18. whale: Largest mammal
- 19. Ready
- 20. Plunge into water
Down
- 1. Shouts out
- 2. Enormous in size
- 3. Swim gear
- 4. Facial coverings
- 6. Enormous creature
- 7. Ship leader
- 8. Pay no attention to
- 9. Go after
- 10. Air pockets in liquid
- 14. Living being
- 17. Not easily forgotten