Aims and objectives: The importance of childhood physical activity is widely recognised. Helping children to articulate their opinions is a crucial factor in improving their health and well-being, yet the field is predominantly focused on adult-led quantitative methods and lacks deeper understanding from a child perspective. Methods: This paper draws on experiences from a Danish study in which children depicted their physical activity behaviour in go-along group interviews in schoolyards (n = 111), and a Scottish study in which children photographed or drew meaningful places and discussed physical activity in these places (n = 25). Results: The benefits and challenges associated with using participatory methods to understand how children perceive the environment in relation to their physical activity behaviour are described. Conclusion: Findings contribute to the literature by suggesting that participatory approaches are valuable in capturing children's perceptions of physical activity behaviour in outdoor environments.