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 (104, 404) 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 (104, 404). 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 (104, 404) 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 (104, 404). 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 (104, 404) 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 (104, 404). 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 (104, 404) 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 (104, 404). one or more crossover units (104, 404) 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 (104, 404).