Think snowball fights with your kids are exhausting? Try getting in a fight with 5,834 people using 30 truckloads of snow.

That’s what Seattle residents did on Saturday when they earned the Guinness World Record for the biggest snowball fight in history. The maelstrom was part of an event dubbed “Snow Day,” which was used as a fundraiser for the Boys and Girls Clubs of King County that raised $50,000, according to the Associated Press.

“We had a lot of fun, set a Guinness record, raised some money for kids, and everyone had a chance to act like a kid for a day,” event organizer Neil Bergquist told the Associated Press.

The previous world record snowball fight involved 5,400 people at an event in South Korea in 2010.

The world-record-breaking feat required three months of planning and 130 on-site judges who watched for people who weren’t participating.

Take a look at the video above to get an idea of what it was like to have 5,800 people hurl snowballs at whim–the snowballs are so plentiful they look like the camera flashes of packed Olympic stadiums.