HARRISONBURG, VA (Rocktown Now) — The 21st Annual Harrisonburg Soap Box Derby returns to Rockingham County on May 30th.

Organized by the Rotary Club of Rockingham County, the event gives kids and teens an opportunity to design and construct their own gravity-powered cars.

Research Drive will be transformed into a racetrack where spectators can cheer on the proceedings.

Registration for the derby is now open until May 5th.

Interested individual drivers and teams can find more information and sign up on the official Rotary Soap Box Derby website.