We have designed and built several units of cableway-like-recumbents for a Dinopark in Vyškov, Czech Republic. The loop you can pedal is about 300 meters / 1000 feet long and at the highest point, you fly 11 meters above the ground and above the dinosaurs. Those are in their original size, they move and even scream. The attraction is officially called Dino Bike.
See here a video showing the atmosphere.