This study explores the positive effect of cross-cultural activities on social healing and healthy aging. While the life expectancy has increased, the healthy years of older adults have yet decreased. Among elderlies especially those who experienced war-related adversities in their early ages, have limited access to positive cross-cultural activities. The theories of social-connectedness suggest that both perceived social support and objective connectedness to the society promote healthy aging. It is necessary to develop a culturally contextualized approach for their healthy aging while considering individual traits. The present study tries to contextualize the post-adversity and resilience in social network observed among Jeju legacy. With that contextual identification, promoting cross-cultural competence among elderlies is expected to yield positive gain in their aging process. The organized transcultural activities for Korean American elderlies in the U.S. exemplify how cross-cultural interactions promote inclusive social interaction and social healing at grass-root levels.