Across
- 4. Riding ocean waves on a board
- 9. running and jumping over obstacles
- 10. Gliding through the air with a parachute-like wing
- 11. Sliding down snowy slopes on a single board
- 15. Jumping from buildings, antennas, spans, and earth formations
- 16. The part of skydiving before opening the parachute
- 18. Walking or balancing on a flat rope tied between two points
- 19. Flying with a non-motorized, lightweight wing
- 20. Surfing using a sail attached to the board
Down
- 1. Kind of rafting done on rough, fast rivers
- 2. A flashy form of parkour with flips and spins
- 3. Off-road motorcycle racing
- 5. Performing tricks on a wheeled board
- 6. Surfing while being pulled by a large kite
- 7. jumping Jumping off a high platform while attached to an elastic cord
- 8. Jumping from an airplane with a parachute
- 12. Stunt riding on a small-wheeled bike
- 13. Exploring deep caves or underground tunnels
- 14. Ascending steep rock faces or indoor walls
- 17. Riding on a suspended cable at high speed