The Clayton Club Saloon, arguably the second-oldest bar in California, is on Main Street in Clayton. This bar is a fun reminder that California was once the wild, wild West. With boots hanging from the ceiling and country on the jukebox, this place is a bar not worth missing. It's a great place to meet friends for a shot and a beer, and if the mood suits you, you can ride down on your horse -- the tie-ups are in the back parking lot.