Wow, that was fun! I thought I knew quite a bit about brewing, but still learned a LOT from our super-friendly guide who has many, many years of experience in the industry. And since it was my first trip to Asheville, I really appreciated the local history/insights.
Check out their website for days and times of tours, since it varies by day of the week. Not a lot of walking, just a lot of hanging out at a couple of brew-pubs talking about brewing, enjoying beer, science, and local culture. Wonderful way to spend a few hours!