Caring for children with developmental delays or disabilities places significant stress on caregivers, which is often exacerbated in low-resource settings. The World Health Organization developed a caregiver skills training for families of children with developmental delays or disabilities, which includes a three-session caregiver well-being module based on Acceptance and Commitment Therapy, that aims to help caregivers build psychological flexibility (i.e. the ability to focus on the present moment, make space for difficult thoughts and emotions and commit to value-driven actions that enrich their lives). We investigated whether this brief caregiver well-being programme was feasible, acceptable and contributed to positive outcomes for caregivers in a rural South African town. We adapted the intervention to the local context using a participatory approach. The 'Well-Beans for Caregivers' adaptation of the World Health Organization Caregiver Skills Training Caregiver Wellbeing module was then delivered by trained facilitators to a group of 10 caregivers in three weekly, 2-h sessions. Most caregivers were single and unemployed. Feedback from the facilitators, caregivers and trainee observers was obtained before, during and after the programme. Results suggested that this brief programme shows promise as a feasible and acceptable intervention, which may lead to improved caregiver well-being and mental health in communities in South Africa. [This article was written with the WHO CST Team.]