Now in its fourth year, the California Beer Festival returns to Marin County’s picturesque Stafford Lake for another round of the best local breweries serving up prized ales, lagers, ciders and more. As the craft-beer movement has expanded, so has the fest. North Bay favorites like Lagunitas and Bear Republic join other established brewing companies for an afternoon boasting 80 beers on tap, along with live music from Wonderbread 5, IrieFuse and the Grain, and a tasty selection of food. All proceeds go to support student athletes in Marin. The California Beer Festival goes down on Saturday, June 20, at Stafford Lake Park, 3549 Novato Blvd., Novato. 12:30pm. $50Ð$70. Californiabeerfestival.com.