I investigated the relationships among health consciousness, self-esteem, and successful aging in the context of South Korean baby boomers' engagement in leisure sports. The sample consisted of 530 baby boomers who actively participated in leisure sports in South Korea. Data collection was carried out through an online survey. Structural equation modeling revealed that health consciousness had a positive effect on both self-esteem and successful aging. Moreover, self-esteem had a positive effect on successful aging. My findings provide valuable insights to guide the formation of impactful strategies aimed at enriching the journey of successful aging within this specific demographic.