Older adults with mild balance dysfunction can benefit from early intervention. This research explored the experiences of older adults with mild balance dysfunction participating in an 18-week supervised outdoors Seniors Exercise Park program and 6 weeks of unsupervised independent practice. Factors influencing attendance and independent practice were also explored. Semistructured face-to-face interviews were conducted with 24 participants (mean age = 77.4 years, SD = 5.4) and 22 participants (mean age = 77.5 years, SD = 5.6) after 18 and 24 weeks, respectively. The data were analyzed using reflexive thematic analysis. Many participants perceived improvements in health and responded positively to the supervised Seniors Exercise Park program. Factors supporting attendance included building social connections and positive instructor personality. Barriers to training included competing time demands and poor health. These insights suggest that a group-based Seniors Exercise Park supervised program was well accepted and can be an option to improve the health of older adults with mild balance dysfunction.