When traveling one of the things I love most is visiting botanical gardens. Recently, I remembered that having lived in the San Francisco Bay Area 40 odd years, I somehow managed never to have visited the wonderful garden in Tilden Park atop the Berkeley hills.
It has charming paths and bridges and stepping stones going up and down and around the attractions which include a tropical rain forest, among other habitats.
I think I could spend a whole week in Tilden and not be bored. On the way up you might want to stop and see the Berkeley Rose garden as well. Of course, the flowers there are most prolific in May, but I took this photo in August: