As the days get shorter and the weather turns ugly, regrets from not taking advantage of the beautiful Northern California summer climate can all too easily set in. Marin County’s Biketoberfest is the place for one last hoorah under the sun. The festival combines two local favorites—beer drinking and bike riding—and the lineup of events includes beer tasting, celebrity bike riders, live music and a free skill zone for young bike enthusiasts. Bring your bottle opener and bottom bracket tool on Sunday, Sept. 25, to FairAnselm Plaza. 765 Center Blvd., Fairfax. 11am–6pm. Free. 415.272.2756.