First Unitarian Universalist Church of San Diego - South Bay in Chula Vista is the South Bay campus of the oldest UU congregation in San Diego County, founded in 1873. The South Bay worship site gathers at Saint John's Episcopal Church on First Avenue, extending UUA programming into the 91910 corridor through a shared-space arrangement, and the congregation's social-justice initiatives operate alongside community organizations such as South Bay Community Services. The parent church at 4190 Front Street in Hillcrest has seeded five additional UU congregations across San Diego County since its founding by civic leaders Alonzo Horton and Moses A. Luce. South Bay campus programming includes worship, religious education for children, and intergenerational small groups exploring ethical frameworks drawn from world religions, science, and humanist philosophy -- a cultural programming model also represented by arts organizations in the area such as On Stage Playhouse. The congregation's Journey Toward Wholeness initiative implements a UUA-mandated anti-racism and anti-oppression curriculum at both campuses, integrating structured study modules with direct community-engagement action items across the South Bay and Hillcrest sites.