The zip line is commonly known as the trapeze, also known as "speed skating", "downhill", etc. It was first used for mountain self-rescue and military assault operations. It evolved into a recreational project and is a challenging, stimulating and entertaining modern sport. Amusement project. It can span grassland, lakes, rivers, and canyons, and it can slide down from a height at a high speed by means of height difference. Let visitors feel the excitement and satisfaction in the joy of being in danger.