If you are going to San Francisco then there is one place that you should not miss out on in my humble opinion, and this is a place that you would not think of yourself, guaranteed! The Academy of Science in San Francisco has the most interesting roof tip garden in the world. It is absolutely amazing! You have to go there!
That sounds wonderful. I always like visiting gardens and this one would be a very unusual one to visit indeed! I would like to hear whether it is suitable to go there with the kids as well, and how big the garden is. And some more details of what kind of plant life I could expect there would be great too.