Folsom Street Fair Folsom between 7th and 12th St., SF. www.folsomstreetfair.org. 11am-6pm, free. The urban Burning Man equivalent for leather enthusiasts, going to this expansive SoMa celebration of kink and fetish culture is the surest way to see a penis in public (you dirty dog!).
Sept 30-Oct 2
Hardly Strictly Bluegrass Speedway Meadows, Golden Gate Park, SF. www.strictlybluegrass.com. 11am-7pm, free. Pack some whiskey and shoulder your banjo: this free three day festival draws record-breaking crowds — and top names in a variety of twangy genres — each year.
Items with asterisks note family-fun activities.