Westonbirt Arboretum (SUNDAY) Half Marathon, 10km, 5km & Fun Run

Get ready for an unforgettable day of running and nature at the Westonbirt Arboretum Half Marathon, 10km, 5km, and Fun Run on Sunday, September 6, 2026! Organised by Relish Running Races, this exciting event takes place in the stunning surroundings of Tetbury, Gloucestershire, where participants will have the unique opportunity to run amidst over 2,500 species of trees, including rare national collections from around the globe. The picturesque routes promise an enchanting experience, combining the solid terrain of a road with the captivating beauty of a trail run. Perfect for runners of all levels and families, your race ticket grants you all-day access to the arboretum, allowing you to explore its breathtaking landscapes. Plus, friends and family can join in on the fun for just £3 per person, gaining special access before 9am. Whether you’re aiming for a personal best or simply want to enjoy a day out in nature, the Westonbirt Arboretum event is the perfect blend of fitness and family-friendly adventure!

Westonbirt is the National Arboretum, home to over 2,500 different species of tree! This includes 5 national collections, including rare trees from across the world. The route is incredibly beautiful, varied and interesting as you run through the different areas dedicated to specific species. The sold terrain underfoot gives you a surface more akin to a solid road surface, with all the beauty of a trail run. Westonbirt is a great relaxing family day out with lots of activities for children too. As part of your race ticket you are welcome to stay and enjoy the arboretum for the whole day, and family, friends and supporters can gain access to the arboretum for just £3/person when travelling with a runner, for special access before 9am, and stay for the day too. Normal visitor ticket prices will be payable after 9am.