The fast-growing Rock Harbor Church will celebrate its one-year anniversary Oct. 4.
Born out of Mariner's South Coast Church in Irvine, the so-called daughter church draws about 750 people to weekend services in the Costa Mesa Senior Center. It began with 300 people.
Pastor Keith Page, associated with young adult programs at Mariner's, helped found the church with the idea that it would be representative of the diverse population that lives and works in Costa Mesa. Rock Harbor is a nondenominational Christian church.
Anniversary services will begin at 8:45 and 10:45 a.m.
Information: (714) 546-1919.