Convertible wagon, car seat, stroller, and bucket carrier child transport system

A child transport system, comprising:

• a seat system comprising a first seat shell, a second seat shell, and an extendible frame, the first seat shell and the second seat shell each being attached to the extendible frame, the first seat shell being slidable within the second seat shell along a linear axis between a first position and a second position to adjust a length of the seat system along the linear axis;
• a set of front wheel assemblies rotatably attached to the first seat shell;
• and
• a set of rear wheel assemblies rotatably attached to the second seat shell;
• the child transport system being configurable between multiple configurations comprising a stroller configuration, in which the seat system is locked in the first position and a wagon configuration, in which the seat system is locked in the second position.