Children's journeys between home and school have become increasingly problematic in Western cities as a result of intensifying traffic and safety concerns. Many parents now take their children to school by car and, through driving, exacerbate congestion. In response to this situation, a number of school communities, in partnership with local authorities, have established walking school buses (WSBs). In this paper the WSB phenomenon is critiqued, with particular reference to the initiative adopted by a primary school in Auckland, New Zealand. It is concluded that WSBs offer participants a highly ambivalent form of empowerment and spatial freedom that is contingent upon adult surveillance and disciplinary power.