Countdown

118 days since Maple City Grand Prix 2016.

Welcome to Maple City Grand Prix

Maple City Grand Prix - June 3 - 5, 2016

Watch the world's fastest tunnel boats as they handle right and left turns, switching directions on a dime and reaching speeds over 100 miles per hour in the 4th Annual Maple City Grand Prix on Stone Lake, LaPorte, IN.

The Maple City Grand Prix features 3 days of racing, a fantastic fireworks show, live music, boat parade, block party and fun for the entire family.