If leather is in your summer wardrobe, head to Up Your Alley®, a.k.a. Dore Alley Fair. It\’s the neighborly version of the Folsom Street Fair, though it can get raunchy with its public floggings, spankings, and creative water sports on display. The main difference: You can expect a how-do-you-do before the ball gag. Be warned that summer in San Francisco can be finicky — some days warm, some days darn right cold — so check the weather before you pack.