The local non-profit bike co-op puts on a lot of rides. There's a social ride monthly that has a costume theme that draws about 200 people depending on weather. But only about 5% actually wear a costume. I ride this one because I see friends there but it almost aggravating in that it is very slow paced-slow enough for kids just off training wheels. There's a monthly coffee outside ride where the ride leader pulls a trailer with a cooler full of iced coffee that is shared in a park at the far end. Those 2 are the big ones. I skip the full moon rides due to an early workday. There is also a large local club that rides regularly, but they usually start way out in the suburbs and seem to attract a more competitive crowd, so haven't participated there. But when I really want to just keep pedaling for 6+ hours no one is interested in going along with me... Gotta learn more songs to sing aloud on rural roads...