The mud will fly Saturday at the Play Dirty Adventure Trail Run and Mini Muck event at the Lamar-Dixon Expo Center.

A portion of the proceeds from the event will go to the Ascension Fund, a nonprofit group that provides grant money to area teachers.

The 3-­mile course will have competitors conquering 21 challenges before crossing the finish line, Play Dirty director David Poleto said.

The obstacles include giant mud pits, a cargo net climb, a tunnel crawl and a hay bale mountain.

There’s also a 1-­mile Mini Muck course for children ages 6 to 13.

“Participants should plan on getting dirty and having an amazing adventure. You won’t want to miss this one,” Poleto said.

To register, visit www.playdirtyadventure.com.