Live music, games, & crafts for kids. Proceeds benefit Friends of the Petaluma River. Single-day tickets: $33. Ages 4–16: $5/day. Ages 3 and under: free. Two-day pass: $55. July 18–19: 5–10 p.m. Steamers Landing Park. 6 Copeland St., Petaluma. petalumadowntown.com.