Halloween in San Francisco is a huge party for witches, goblins, and zombies of all ages. For the grown-up set, there’s the Halloween Pub Crawl San Francisco on the day itself. Can’t get out on a Wednesday night? The weekend before All Hallow’s Eve, there’s the Happy Hour Halloween Pub Crawl in Union Square on Friday, October 26, produced by PubCrawls.com. Check their website for the latest updates, http://pubcrawls.com/san-francisco-pub-crawls.php. In fact, all weekend long, there are ghoulish opportunities for flaunting that fang-tastic costume. On Halloween night, The Mad Hatter’s Ball at 1015 club, features the Frite Nite Room and a slew of spooky dance mixes. For family fun, head to the Noe Valley Harvest Festival on October 27, which is free and has live music, jumpy houses, craft booths, a farmer’s market, vendors, pumpkin decorating, horse-drawn wagon hay rides all in a charming San Francisco neighborhood.