This study examined the motivations, perceived benefits, and challenges of engaging in intergenerational programs from the perspectives of older adults and university students. A narrative interview approach was employed, involving a sample of 38 older adults and 20 university students who participated in intergenerational programs in Hong Kong. The motivation to reinforce intergenerational contact, strengthen social cohesion, and previous productive experiences were driving forces behind individuals' participation in intergenerational programs. Moreover, participating in intergenerational programs enhanced mutual understanding between generations, and expanded knowledge and social circles of participants. However, participants found it was challenging to cope with intergenerational conflicts, role conflict and ambiguity, inactive engagement, and difficulty in establishing meaningful connections between generations. It is suggested that program designers and organizers should establish collaboration between various institutions, provide appropriate training sessions, and incorporate meaningful and purposeful components in program design to improve the quality of intergenerational programs. CONTRIBUTION TO THE FIELD: Motivations of participation included strengthening intergenerational contact and social cohesion, and previous positive experiences. Intergenerational programs enhanced mutual understanding, mental well-being, knowledge sharing, and social circles. Enhancing program preparations and design, facilitating skills, and quality interactions are important for intergenerational programs. Copyright ©2025 Taylor & Francis Ltd.