It?s the year 8000. Learn how Hang Gliding can help you survive in outer space, and any where else you want to fly. Cross-country flying down the Sierra mountain range past the Scenic Lake Tahoe. Covers important aspects for flying cross country; thermal principles, navigation, teamwork, GPS, speed to fly, competition, and more.100% Hang gliding. TRT 37 Min. Specify DVD or VHS Format.