Two paragliders carrying customers collided in mid-air above Queenstown yesterday before crashing into trees.
The experienced tandem pilots, from company G-Force Paragliding, came together shortly after takeoff from the resort's Skyline hill at 11.30am.
One pilot managed to deploy his reserve chute before both came down high in trees.
G-Force Paragliding deputy chief executive and training manager Dominic Eller said there were no injuries to either of the two pilots or two customers.
Mr Eller said: "A glider spun, also know as a negative spin, the pilot recovered that but during the recovery the glider surges forward, and during that surge there is a dive.