Children's freedom to move around in the environment and independent mobility may be connected to children's ability to perceive, use and shape affordances. The latter refer to the functionally (and socially) significant properties of the environment that are perceived through the active and direct detection of information. Children with few mobility restrictions may find more affordances in the environment than those children who are restricted to move around. On the other hand, a rich set of affordances may motivate children to explore their environments more extensively. The aim of the paper is to present a synthesis of several studies on the relationship of children´s mobility and the availability of affordances. Research methods include questionnaires on affordance availability as well as interviews with both children (241 children) and their parents in Finland and in Belarus.