Patent ID: 7699140

Claim:
A system for transporting a rider between a plurality of platforms, comprising: at least three tree support structures spaced at least 50 feet apart; a plurality of upper cable supports and lower cable supports attached to said at least three tree support structures, said lower cable supports being located at a predetermined lower elevation than said upper cable supports, wherein said upper cable supports comprise a tree encircling device having at least two encircling cables wrapped around a cable block having one of grooves or holes formed therein accommodating said at least two encircling cables; a cable connected to the cable block at a connecting point in said one of grooves or holes and extending between said plurality of upper and lower cable supports such that a nadir of said cable between any two adjacent ones of said tree support structures is at a lower elevation than any two adjacent ones of said upper and lower cable supports, said cable provided with a predetermined swag that is selected to ensure that a rider traveling along said cable arrives at each of said plurality of platforms at a velocity of at least 0.25 mph and less than about 3 mph, the cable connecting point being vertically adjustable within said one of grooves or holes; a pulley assembly reversibly mounted on said cable for movement there along, said pulley assembly being operatively associated with a lanyard; a rider harness connected with said pulley assembly or said lanyard for supporting at least one rider for travel along said cable; and a plurality of platforms adapted for operable association with said tree support structures, said platforms suspended from said tree support structures by a plurality of cables, said platforms encircling said tree support structures and having an area sufficient to accommodate at least four adults in a standing position.