The Marin Irish Festival returns to Lagoon Park at the Marin County Fairgrounds on May 3-4, 2025, bringing a lively celebration of Irish music, dance, and heritage. Hosted by Red Barn Productions, producers of The Great Dickens Christmas Fair and the original Renaissance Pleasure Faire, the festival (formerly Ceili On the Lake) promises a weekend of traditional entertainment, hands-on cultural experiences, and family-friendly fun.