Kielder Marathon

Kielder Marathon, known as Britain's Most Beautiful Marathon, is held around Kielder Water in Northumberland. The event takes place over a weekend and features a variety of races, including a full marathon, half marathon, 10K, and junior fun runs. The marathon route follows an almost entirely off-road course around the lake, offering breathtaking scenery and an electric atmosphere.\n\nWith its well-organized setup and stunning natural beauty, this marathon is a must-do for those seeking a memora