It’s time to get outside, Boulder! In May, there are tons of fun events to attend including the Firefly Handmade Spring Market, Erie Balloon Festival, Boulder Creek Festival, BolderBoulder, Upslope Get Down as well as Leftapalooza. If you enjoy classical music, MahlerFest and Boulder Bach Festival Week are back. But there’s more! Duck races, magic shows, comedy shows, fun runs, musicals, and art events. Here are 30+ things to do in Boulder in May.