Drink About is a great way to explore San Diego's great craft brew culture. One Wednesday a month* you can get from South Park to North Park to Normal Heights to University Heights for free. without having to worry about driving or parking yourself. (*usually the 3rd Wed., but St Paddy's Day got in the way this month)
2 “Brewery Tours of SD” Busses loop for 4 hours, stopping at 8 craft-beer bars.
Hop on and off FOR FREE at Blind Lady, Small Bar, Live Wire, Toronado, Ritual Tavern, Sea Rocket, The Station & Hamilton’s.
The first buses will be leaving Blind Lady at 7pm and Hamilton’s at 7:10pm. They will run in a circular pattern until 11pm, stopping only at stops on the right side of the street. This means they will only stop at Ritual on an express route from Hamilton’s to Blind Lady.
Important Tip: The buses will do their best to always stop at Toronado and Ritual Tavern at the same time so that you can transfer at this point.
To get more info and to download a bus schedule go to the official Drink About site.