The Great Ennis 5k begins and ends at the John O'Sullivan Park on Lee's Road, a central community hub for sports in Ennis. The course leads participants through the scenic outskirts of Ennis town, offering a pleasant mix of urban and parkland views. Runners navigate a fast route that passes local landmarks and showcases the natural beauty of the surrounding Clare landscape. The terrain is primarily comprised of smooth tarmac roads and well-maintained park paths, providing a consistent and reliable surface. It is a fast and flat, net-downhill course.