The largest celebration of its kind in California, the 10th annual Lake Sonoma Steelhead Festival marks the start of the steelhead trout spawning season, taking place in streams and hatcheries throughout the West Coast. Hosted by the Friends of Lake Sonoma, the festival is a family-friendly day of activities for all ages, with food trucks, drinks, silent auctions, exhibits and more. This year, the fest is also offering free bus transportation, leaving from the Dollar Tree in Santa Rosa’s Roseland neighborhood. The fish fun happens Saturday, Feb. 10, at Lake Sonoma’s Milt Brandt Visitor Center, Skaggs Springs Road, Geyserville. 10am to 4pm. Free admission. lakesonoma.org.