Just wanted to write about how much my son likes riding the steam train at the San Francisco zoo. We look at animals for a few minutes after we arrive, but quickly end up at the train. We watch it steam down the tracks and through the tunnel a few times before hopping on ourselves. It loops twice, but the low cost makes it affordable to buy a few trips. We always have a good time.
I can not say enough how great a time my family and I had at the zoo. There are a variety of animals and the zoo is huge. There are some great shows that are fantastic for children. My kids had a great time just watching and interacting with the animals. The food is overpriced so make sure to eat before. You can really spend an entire day here just looking around. My children loved the bird exhibit. We got to see flamingos which is something they had never seen before. Bring light and heavy clothes because the weather here is always different and changing. I would highly recommend this for families of all ages. There are plenty of places to sit as well, if your family needs a break from walking around. There is a fantastic play area that my children just loved. Definately worth the money.