3. Do: Napa Valley Aloft
If you've never been in a hot air balloon, this is where you want to do it. The wake-up time for @nvaloft's tours is early (you'll need to arrive by 6 am), but it's 100 percent worth it. Guest are invited to watch the balloons get blown up—a cool experience in itself—then have breakfast with the pilot after you're back on solid ground. Expect to take in breathtaking views as the sun rises over the Valley.

Also noted: Check out the kayak tours offered by Napa River History Tour. You'll get a Napa history lesson from your guide and local resident Justin while you paddle along.