Knot cavers, arborists, rescue professionals, stagehands, fishermen, linemen and surgeons. The International Guild of Knot Tyers is an organization dedicated to the Promotion of Knot tying. Truckers in need of securing a load may use a trucker's hitch, gaining mechanical advantage. Knots can save spelunkers from being buried under rock. Many knots can also be used as makeshift tools, for example, the bowline can be used as a rescue loop, and the munter hitch can be used for belaying. The diamond hitch was widely used to tie packages on to donkeys and mules. In hazardous environments such as mountains, knots are
Human knot arms. The challenge is to solve the game several times starting each time with an increasing number of crossed people. The game is recommended for children from 12 years and up, and is best suited to a group of ten or so players. No materials are required. The purpose of the human knot puzzle is to gain team building skills, problem solving skills, and communication skills among a group of people and onto the individuals participating. The options that can be included to make the activity more difficult are the following: Human knot A human knot is a common icebreaker