This is not really of San Francisco. It's Armstrong Redwoods, which is 60 or so miles up the coast from San Francisco, in Western Sonoma County. It is a little Redwood grove full of very large, very old trees, and very good vibes. It tends to be colder there than you might think. The sun never reaches the ground. Occasionally, you may think you see an Ewok in the corner of your eye, but when you look, it's gone.