The San Francisco Botanical Gardens are free and very beautiful. One of my favorite spots is in the Japanese Gardens. I also enjoyed the Redwood Nature Trail and Garden of Fragrance. I saw some cute turtles in a pond. Lots of squirrels run around the garden. Great bird watching here. There are plenty of benches to sit. You ll do plenty of walking, but it s worth it. Check out the gift shop because they have some intersting things to buy. The restrooms are clean. Be careful of the poison oak.
It s free. I highly recommend you take a docent tour, which tells you about the plants and gives you some fascinating information:http://www.sfbotanicalgarden.org/visitin��