On the waters of Lake Anna, it's not unusual to see boats lazily cruising its calm expanse. What is unusual, however, is watching someone rip by on a flying bike. Ayers Extreme Water Sports offers two varieties of such attention-grabbing machines, both powered by pressurized jets of water. While standing atop a Flyboard, riders can shoot into the air, performing flips and spins before diving into the water. The Jetovator flying bike can reach heights of 30 feet and speeds of 25 miles per hour, allowing riders to act out the famous scene from E.T., albeit damper.