October in San Francisco brings Fleet Week, amazing weather and the San Francisco Halloween Pub Crawl, better known as Crawloween. Produced by CrawlSF, this massive 4-day event has become a Bay Area tradition, bringing together thousands of people for an amazing Halloween weekend filled with drinks, DJs, costumes and a whole bunch of fun. In 2024, Crawloween drew over 16,000 people to bars across The Marina, Russian Hill, North Beach and Polk Village, making it the largest Halloween event in San Francisco.