The SF Bay Trail is a 500-mile trail for walkers and cyclists that runs around the SF Bay. Part of it goes from he AT&T Park to the Golden Gate Bridge, permitting to see a great deal of the city without leaving the shore. That was my first day’s plan in SF. I left from the Caltrain station and followed the coast up to Fort Mason passing along the piers and Ghirardelli Square (which used the be the headquarters of the “famous” chocolate factory) and then came back through some of the famous steep streets and Telegraph Hill.