Day 1 - arrive at noon at the airport
take a taxi to our hotel - The Omni at Union Square
go to Lombard Street
Ghirardelli Factory
and take the trolly to Spencer Fort for a picture of the Golden Gate

Day 2 - Fisherman's Wharf
Pier 39
China town

Day 3 - Check out at noon and drive to Sonoma
Go to Ledson Vineyard

Day 4 - Take a hot air balloon ride at 6am
go to Cakebread for lunch
Take a tour at Beringer
Go to Domaine Carneros winery
Dinner at the Girl and the Fit

Day 5 - Drive to the airport and return rental car by noon

It will be DH, my best friend, our 5 month old baby and me

Sounds like a great itinerary.
Have a wonderful time.

FYI...The Omni is not at Union Square. It is in the financial district about 8 blocks from Union Square.

Maybe I just don't know about it...but what trolly is taking you to Battery Spencer?

Cakebread is a great choice.

I do hope you meant Fig. Girl and the fit sounds like my ex....

"take the trolly to Spencer Fort for a picture of the Golden Gate"

Do you mean Fort Point in SF or the Spencer Battery in the Marin Headlands? Like saps I do not know any trolley that goes to the Marin Headlands.

Couple of suggestions Ghirardelli is basically part of the Wharf, so you can combine those activities. Chinatown is only a few blocks from your hotel so you might do that on Day 1, then grab the cable car to go see Lombard Street.

This might be a stupid question because I have never done a hot air ballon ride...but are they okay for a 5 month old at 6 am?

"Trolly" maybe you mean one of the cable car tours, do they go to Spencer?

By the way, there is more then one Golden Gate in SF, I assume you meant the bridge?

When making balloon reservations, have you confirmed the baby will be allowed on?

And Saps, no, it's not a stupid question. Just imagine: take that warm sleepy baby out in the cold, doesn't matter where, it won't be warm at 6 am up there in the sky!

Oh, well, I've only raised 2 of my own babies, who am I to give advices! It's up to the parents to decide.

Does Cakebread serve lunch? When we were there, they had a special group dining experience, but sounded as if it was a rather special event.

I'd definitely call and see. You'll need to make an appointment/reservation for the tour/tasting anyway.

loves, I think you might be right. I know they used to have food tastings on Friday though it is not "lunch" in a restaurant sense. I really enjoyed our tour there last year (must reserve ahead for tours or tastings).

actually the restaurant for dinner is "The Lady and The Fig" and for lunch is Cakebread.
Also, the baby will be staying at the hotel with my friend while DH and I ride the hot air balloon

Good choice keeping baby at the hotel while you balloon. The Girl and the Fig is very good; you'll like it (but for some reason they don't have chardonnay, which is my preference; their wine list (available on line at www.thegirlandthefig.com) is unusual). Enjoy!