Background: Having a strong connection to culture and Country is fundamental to the health and wellbeing of Australian Aboriginal children. The aim of the research was to evaluate the feasibility of study methods and programme implementation of a co-created afterschool cultural programme, and identify areas for improvement. Methods: Aboriginal Relational Research Methodology and mixed methods were applied to evaluate the feasibility of the implementation of the programme and study methods using a non-randomised single-group study design. Australian Aboriginal children and their siblings aged 5–13 years were recruited within regional New South Wales, Australia. The primary outcomes for feasibility included recruitment rates of children and Aboriginal programme mentors, compliance rates of outcome data collection and of the planned programme activities, programme attendance, retention rates and mean enjoyment scores. Follow-up yarning circles were conducted with the children, their par