Ключевые слова: acrobat, adult, ahead, championship, craft, czech, do, doing, down, fall, falling, fast, flying, free, freeride, fun, high, holidays, human, jet ski, jetski, jump, jumping, labe, leap, male, man, people, person, power, powerful, quick, republic, ride, rider, riding, river, roudnice, roudnice nad labem, roudnicky, sea, ski, skier, speed, speedy, sport, sports, stunt, stuntman, summer, surf, surfing, swift, transport, transportation, trojuhelnik, wake, water, watercraft, wave, waves, world,