This article reports the findings from a qualitative study evaluating a Visiting Mum scheme that supported Welsh children with a mother in prison. There are 12 women's prisons in England, and none in Wales. Women living in south and west Wales are currently incarcerated at HMP Eastwood Park, Gloucestershire. This is significant for Welsh children, as journeys to the prison are extensive and costly. This article focuses on the rarely heard experiences of the children when visiting prison. We ran focus groups with 12 children utilising innovative, participatory and creative methods. The findings reveal a hidden population of children who suffer disproportionately as a result of their mother's incarceration but who were effectively supported by a service which helped to sustain mother-child relationships during their mothers' imprisonment.