A track cable system for an extendable zip track system, comprising: a first end and a second end ; and a track , comprising: a downward incline portion ; a straight portion ; characterised in that the track further comprises: an upward incline portion ; wherein the first end connects to the downward incline portion which connects to the straight portion which connects to the upward incline portion which connects to the second end ; and characterized by : one or more crossover units that allow for expansion of the track cable system , comprising a crossover arch that extends from a first crossover support pole to a second crossover support pole , and a crossover connection ; wherein the track comprises a plurality of track pieces which are connected to each other through the crossover connection of one of the one or more crossover units . a first end and a second end ; and a track , comprising: a downward incline portion ; a straight portion ; characterised in that the track further comprises: an upward incline portion ; wherein the first end connects to the downward incline portion which connects to the straight portion which connects to the upward incline portion which connects to the second end ; and characterized by : one or more crossover units that allow for expansion of the track cable system , comprising a crossover arch that extends from a first crossover support pole to a second crossover support pole , and a crossover connection ; wherein the track comprises a plurality of track pieces which are connected to each other through the crossover connection of one of the one or more crossover units . a downward incline portion ; a straight portion ; characterised in that the track further comprises: an upward incline portion ; wherein the first end connects to the downward incline portion which connects to the straight portion which connects to the upward incline portion which connects to the second end ; and characterized by : one or more crossover units that allow for expansion of the track cable system , comprising a crossover arch that extends from a first crossover support pole to a second crossover support pole , and a crossover connection ; wherein the track comprises a plurality of track pieces which are connected to each other through the crossover connection of one of the one or more crossover units . an upward incline portion ; wherein the first end connects to the downward incline portion which connects to the straight portion which connects to the upward incline portion which connects to the second end ; and characterized by : one or more crossover units that allow for expansion of the track cable system , comprising a crossover arch that extends from a first crossover support pole to a second crossover support pole , and a crossover connection ; wherein the track comprises a plurality of track pieces which are connected to each other through the crossover connection of one of the one or more crossover units . one or more crossover units that allow for expansion of the track cable system , comprising a crossover arch that extends from a first crossover support pole to a second crossover support pole , and a crossover connection ; wherein the track comprises a plurality of track pieces which are connected to each other through the crossover connection of one of the one or more crossover units . <EOS>