The study's aim is to explore the motives encouraging individual family members to participate in adventure tourism activities while on holiday and the benefits they gain from these experiences, using wellbeing as the conceptual lens. The key contributions are to address the gap in literature on family adventure tourists, and apply the subjective wellbeing (SWB) constructs of hedonic wellbeing (HWB) and eudaimonic wellbeing (EWB) to understand these tourists. Semi-structured interviews were carried out with 15 families, comprising 62 interviewees in total (29 adults and 33 children under 18 years old). Findings reveal that hedonic themes were high positive affect, and alleviating feelings of distress and boredom. Eudaimonic themes were challenge and negative affect, optimal experiences, accomplishment and personal development. Family influenced the SWB motives facilitating adventure participation and the benefits gained by different members. Also, there were HWB and EWB similarities and differences between parents, younger children and older children.