About 34,000 people hopped on bikes for their commute on Wednesday, Colorado’s Bike to Work Day, according to early estimates from the Denver Regional Council of Governments.

Everyday bike commuters and advocates for safe streets like Bike Denver and Bicycle Colorado rode alongside first timers. Thirty-seven percent of bicyclists participated for the first time, according to DRCOG.

It wasn’t all sunshine and rainbows. Inevitably and unsurprisingly, drivers parked in bike lanes freely on the one day of the year when bicyclists are supposedly prioritized. But here are some happier scenes.