Explore old army bunkers with your matchy-match-match family.
Jog on the beach
Make Sasquatch noises in a haunted forest on the beach.
Tide pools with tiny cousins.
Alcatraz.
Six-Flags.
Golden Gate.
Redwoods.
China Town.
Boogie Boarding.
So. Much. Awesome. Food.
San Francisco was awesome--warm, but not hot. Hydrangea lined the streets in front of colored houses. The city itself held all the excitement of a bustling urban-center, but with much more class and cleanliness than New York City.
I did miss my mountains though.