Fleet Week San Francisco is an annual event that draws thousands of people into the city. It's a free event in the Fisherman's Wharf district that features the Blue Angels, a full air show over the SF Bay, and ship tours all weekend long. This year, Fleet Week is October 6 - 14, 2019. Most activities and the large air show are over the weekend of October 11 - 13. You will find additional ship tours throughout the week.
It began in 1981 to honor the US Armed Forces and to educate civilians and
military personnel about best practices in humanitarian assistance. It's held
every year in San Francisco on the first or second weekend in October.