Wife and I decided to make our belated honeymoon a "hoppymoon" and visit a bunch of breweries in and around the San Francisco area. We did a bunch of other stuff too but who cares about that.
Stops included Moylan's in Novato:

Lagunitas in Petaluma:

Russian River in Santa Rosa:

Rogue Alehouse in SF (not a Cali brewer but whatever, they're awesome):

Sierra Nevada in Chico:

We also went to Bear Republic (Healdsburg) and 21st Amendment (SF). We wanted to check out Anchor Steam but their tours were booked months in advance. Best beer was definitely Russian River - though my single favorite was the Bison whiskey barrel-aged sour Imperial Porter I had at Rogue. Best atmosphere was Lagunitas (big deck, live Johnny Cash cover sets). Place that smelled the most like wort was Sierra Nevada by a mile.
Had lots of delicious beers and good times, and brought back a cooler of stuff we can't get here (mostly Russian River). Awesome trip, highly recommmended.