San Francisco - Day 4

Day 4 involved a little less walking. We took the trolley down to the warf & walked around some more there.
Mr took the kids on the USS Pampanito submarine tour.
I wish I got pictures inside the Musee Mecanique but the camera battery died earlier that morning. It's full of old fashioned to present video games. Really cool!
We also had a sweet treat at Ghirardelli square & browsed the shops some.