Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1 or 2 seat fixed-wing aircraft. During the late 1970s and early 1980s, mostly stimulated by the hang gliding movement, many people sought affordable powered flight. As a result, many aviation authorities set up definitions of lightweight, slow-flying aeroplanes that could be subject to minimum regulations. The resulting aeroplanes are commonly called "ultralight aircraft" or "microlights", although the weight and speed limits differ from country to country.
Nigel Marven used a microlight to fly with some Nyctosaurus and he saw 2 Deinosuchus, one eating a Nyctosaurus and one swimming up a creek. To catch one of the giant crocs, Nigel must leave the safety of the air and go by the creek.