In southern European countries, grandparents frequently serve as caregivers for their grandchildren. However, while extensive research has been carried out in other countries, few studies have been undertaken in Spain on the perceived consequences of this caregiving by grandparents on the family unit. This work emphasizes the importance and evolution of intergenerational relationships. Through a mix of quantitative and qualitative techniques, this study seeks to obtain knowledge as to the causes and consequences of providing part-time care for grandchildren in the metropolitan city of Murcia. Results suggest that the provision of care tends to be the result of economic limitations of parents. The consequences of providing child care tend to be perceived positively, although grandparents often report physical overload and the feeling of being emotionally overwhelmed as a result of this caregiving.