A zip line is a recreational activity that involves a cable stretched between two points at different heights. Participants wear a harness attached to a pulley that glides along the cable, allowing them to travel from one end to the other, often at high speeds. Zip lines are commonly found in adventure parks, forests, and mountainous areas, providing an exhilarating experience while enjoying scenic views. Safety is a crucial aspect of zip lining. Operators typically follow strict guidelines to ensure the equipment is well-maintained and that participants are properly harnessed. Many zip line courses also include safety briefings and trained staff to assist riders, making the experience enjoyable and secure for everyone involved.