Napa Valley
Since you're visiting California, we wanted to flag that Napa Valley is about an hour's drive from Livermore and makes for a perfect mini-getaway if you have the time. We highly recommend staying at least one night so you can truly enjoy a few tastings at a relaxed pace (and not worry about driving). Please do note that reservations are highly recommended (and even sometimes required) due to popularity.
Below are some of our favorite places in Napa - especially great picks for first-time visitors.
Downtown Napa has MANY tasting rooms (walkable, especially if you're staying in the town)
Our Personal Favorites
Require tasting bookings - we recommend picking 2-3 tastings, as you'll try at least 3-4 wines, plus any 'revisits' if you love something