Heading to San Francisco, looking for recommendations

Good morning Steemians, I am heading out to San Francisco in April for the first time and wanted to get some ideas for things to see and do while I am out there. I thought what better way than to ask the community.

I have a few ideas under my belt but still have to do some research. Here is what I have so far.

Golden Gate Bridge
AT&T Park to catch a Giants game
Alcatraz ( I know you have to book ahead of time)
Golden Gate Park
Napa for the Wineries
Take in the sites of some Redwood Trees

I am visiting family out there but maybe you know of some hidden gems to check out. Appreciate any help.