Craft Brewery located in Downtown San Luis Obispo. All of our craft beers are brewed here on-site, you will most likely see our brewmaster hard at work during your visit. We have a full bar located downstairs. Our tap room upstairs is open at noon Wed.-Sun. with a dog-friendly patio overlooking the creek. We have two happy hours daily 4P-7P and our late night happy hour from 10P-12A. Whether you are thirsty or hungry come down to Underground we will take care of you!