A traveling apparatus including at least, with respect to a traveling direction, a front wheel and a rear wheel and on which a user rides when travelling, the traveling apparatus comprising: a front wheel supporting member configured to rotatably support the front wheel; a rear wheel supporting member configured to rotatably support the rear wheel; an adjusting mechanism configured to adjust a wheel base length between the front wheel and the rear wheel by changing a relative position of the front wheel supporting member and the rear wheel supporting member; and a driving unit configured to drive at least one of the front wheel and rear wheel, wherein the front wheel supporting member includes a handlebar for the user to hold, and the adjusting mechanism includes a hinge that rotates the front wheel supporting member and the rear wheel supporting member in relation to each other, the traveling apparatus being characterized in that the rear wheel supporting member includes a step for the user to ride on, the wheel base length adjusted by the adjusting mechanism is associated with a speed of the traveling apparatus achieved by driving the driving unit in such a way that the longer the wheel base length, the greater the speed becomes, and when one of values of the wheel base length and the speed is changed by an operation of the user, the other one of the values is controlled to be a value associated with the changed one of the values, the traveling apparatus comprises a control unit configured to, when the wheel base length is adjusted by the user operating the adjusting mechanism, drive the driving unit at the speed associated with the adjusted wheel base length, the speed being a target speed, and the user adjusts the wheel base length by changing at least one of a weight on the handlebar and a weight on the step to thereby rotate the front wheel supporting member and the rear wheel supporting member in relation to each other around the hinge. a front wheel supporting member configured to rotatably support the front wheel; a rear wheel supporting member configured to rotatably support the rear wheel; an adjusting mechanism configured to adjust a wheel base length between the front wheel and the rear wheel by changing a relative position of the front wheel supporting member and the rear wheel supporting member; and a driving unit configured to drive at least one of the front wheel and rear wheel, wherein the front wheel supporting member includes a handlebar for the user to hold, and the adjusting mechanism includes a hinge that rotates the front wheel supporting member and the rear wheel supporting member in relation to each other, the traveling apparatus being characterized in that the rear wheel supporting member includes a step for the user to ride on, the wheel base length adjusted by the adjusting mechanism is associated with a speed of the traveling apparatus achieved by driving the driving unit in such a way that the longer the wheel base length, the greater the speed becomes, and when one of values of the wheel base length and the speed is changed by an operation of the user, the other one of the values is controlled to be a value associated with the changed one of the values, the traveling apparatus comprises a control unit configured to, when the wheel base length is adjusted by the user operating the adjusting mechanism, drive the driving unit at the speed associated with the adjusted wheel base length, the speed being a target speed, and the user adjusts the wheel base length by changing at least one of a weight on the handlebar and a weight on the step to thereby rotate the front wheel supporting member and the rear wheel supporting member in relation to each other around the hinge.