This multi-methods qualitative study aimed to identify environmental factors that influence physical activity participation among young people in Edinburgh, Scotland. School pupils (aged 11-13 years) took part using photography, computer blogs, maps and focus group discussions (FGDs). Eleven computer sessions (n = 131) and 14 FGDs (n = 63) took place. Factors influencing physical activity behaviour included proximity and access to local facilities, family and peers and the school physical activity environment. A variety of facilitators and barriers to participation were also reported. Most notable was the importance of cost and value for money when choosing physical activities which, although more evident among pupils attending schools in areas of low socio-economic status (SES), was relevant across all SES groups. Reporting easy access to sports facilities was more common among pupils attending schools from high/medium SES. Use of greenspace for physical activity was reported among pupils from all schools, but was more common among those from low SES schools. Pupils were, in general, satisfied with the facilities available at school, but felt time for physical education could be increased. Findings may help inform interventions, aimed at promoting physical activity at local level.