“A trail loop around the western half of Golden Gate Park.”
— Erik S
Starting at 25th Avenue, you head east towards Crossover Drive, before heading north across the park. When you reach JFK, cross the street and continue on the dirt path on the left side of the street. This will eventually curve west, then take the last trail on the left before reaching Fulton Street.
You'll stick to the northern edge of the park until briefly joining the sidewalk where you can see the ocean, before heading south back across the park. Once across the park, you'll head back east uphill until you arrive back at 25th Avenue. The time on pavement is minimized to a few street crossings.