Abstract: A multipurpose cart assembly for use on hard and loose surfaces includes a wagon. A pair of skis is coupled to and selectively extensible from an underside of the wagon. The skis are configured to be extended from the wagon to contact a surface concurrently with wheels of the wagon being raised from the surface. A handle that is pivotally coupled to a front of the wagon comprises a plurality of nested sections and is selectively extensible. The handle is configured to be grasped in a hand of a user to pull the wagon selectively upon the wheels and the skis.