If you live in the area, or are coming for a visit, being guided around a neighborhood and hearing the poop and getting the scoop on different parts of San Francisco can be a great way to spend a couple of hours.
For example, did you know that under the current Main Library rests a Gold Rush-era cemetery and the ruins of the old City Hall destroyed in the 1906 earthquake and fire? Or haven't you always wanted to know if there really are hidden tunnels, secret rooms, and doors that lead to no where at Alcatraz?
San Francisco City Guides provides this great service. Here is a walking tour schedule sorted by the week, by the neighborhood, or alphabetically. Check it out and see which tour catches your interest or fits your schedule.
This can be a fun way to become a modern day explorer in different neighborhoods while you get a bit of exercise.