Wine tasting tours in SF?

[BeantownR6]

Going to SF labor day weekend with my gf and we are looking to do a wine tasting tour of napa and/or sanoma.

can anyone reccomend any companies that do tours?

i thought this one looks good, but neither of us have done one before.

http://www.winecountrytourshuttle.com/

thanks

 

[baystatebrew]

smitty's of sonoma is a great tour company. located in frederic, ca i believe