Abstract: The present invention relates to a climbing attachment for a child's car seat comprising: a padding portion, where said padding portion is place under an existing child seat; a series of rungs, where said rungs hang from the padding portion; and a mechanism to attach said climbing attachment to a child's car seat. In one exemplary embodiment the mechanism to attach includes at least one anchor strap and preferably includes two anchor straps. The series of rungs may be evenly spaced. The present invention also contemplates a method of assembling a climbing attachment for a child's seat comprising the steps of: attaching a series of rungs to a padding portion, where said rungs hang vertically from the padding portion; inserting the padding portion under a child's car seat; and securely attaching the climbing attachment to the child's car seat.