Integrating social psychology principles with arts- and nature-based activities may foster more positive mental health attitudes among youth. To examine this phenomenon, an attitude change program was implemented to assess its impact on youths' attitudes toward mental health. The study involved 33 youths (mean age = 16.06 years, SD = 1.95) residing in a girls' hostel under a Catholic mission in the Bantayan village, Tamparuli, Sabah. A quasi-experimental design was employed, featuring structured activities categorized into social psychology (mental health talk), nature (green planting), and arts (eco-printing and edible flower chocolate making). All activities were designed in accordance with the Yale Model of Persuasion, which emphasizes the components of communication;who delivers the message, what is communicated, to whom, and with what effect. Paired-sample t-test analyses revealed a significant improvement in youths' attitudes toward mental health following the intervention (pre-test: M = 72.94, SD = 5.74; post-test: M = 77.18, SD = 6.32). In addition, participants demonstrated a significant increase in nature connectedness after the program (pre-test: M = 23.03, SD = 3.59; post-test: M = 24.09, SD = 3.58). These findings offer valuable insights for policymakers, educators, and mental health practitioners in designing initiatives to enhance youth mental well-being. The results further underscore the importance of adopting a multidisciplinary approach to ensure that mental health programs are inclusive, engaging, and effective.