Intergenerational playgroups purposively bring older people, young children and their caregivers together to engage in play and develop reciprocal relationships. Intergenerational research focuses on the benefits for participants, with much less known about how these programmes sustain. This paper discusses and explores programme sustainability through the examination of two playgroups established through Playgroup Queensland's Ageless Play programme. Through qualitative interviewing with playgroup practitioners and participants we aimed to understand how each of these playgroups had sustained beyond 3 years. The findings included the importance of mutual benefit for stakeholders, knowledge and skills of the playgroup facilitator and use of strategies to ensure ongoing interaction and engagement within the group. These findings are important for ensuring the continuation of intergenerational playgroup programmes.