No, it is not the same as parasailing. Parasailing is what you do at a beach. You are in a modified parachute tied to a boat. You get dragged around the harbor by the boat. You do not “pilot” a parasail.
No, it is not the same as skydiving. Parachutes are designed to be deployed during free-fall from an airplane and to then descend to the ground. By contrast, the hang glider is designed to be foot-launched from a gentle hillside. Hang gliders are much more aerodynamic and are designed to be able to go up rather than always down.