Mr. Alf just loves any sort of transportation (apart from walking), so he's up for riding whatever we find. Boats, buses, trams and cable cars are a big thing in San Fran. We did them all.
On our way to the Exploratorium. Touted as the 21-st Century learning lab, it was the perfect place for little and big hands to prod, poke and explore for hours. Sophia's fav exhibit -- pig eyeball dissecting! Alfie just liked climbing and jumping. With his gloves on.