Experience the exciting Monsters Run the River 5K, hosted by Discover Downtown Westbrook! This charming annual road race takes runners through downtown Westbrook and alongside the picturesque Presumpscot River, all set against stunning fall foliage. Bring along your friends, family, co-workers, and your furry friends for this festive race! The event offers a 5K, a K-9 5K, and a Kids Fun Run 1K, with all races starting and finishing at the lovely Riverbank Park.

Everyone is encouraged to dress up in Halloween costumes—there's even a contest! Feel the joy of the scenic route that winds along the famous Presumpscot River and explores our vibrant downtown. Along the way, enjoy breathtaking views of Saccarappa Falls and admire historic architecture in old Frenchtown and the Cumberland Mills Historic District. After crossing the finish line, explore local vendors and discover the bustling shops downtown. Monsters Run the River 5K proudly supports Discover Downtown Westbrook, a nationally renowned Main Street organization. Every registration helps make Westbrook's downtown a walkable, welcoming, and thriving place for everyone. So, get your costumes ready and come Run the River!