Wye Valley Tunnel Run 19th July 2026

Fast and predominantly flat race along the Wye Valley Greenway and through the 1.1km long Tidenham Tunnel!

We have a 10km, 2 Half Marathon and a Marathon to choose from. The route is an old railway line, now freshly opened shared use path.

A flat route on a mix of tarmac path and forest trails, nice and flat with great tree lined running throughout the route. We also have 2 Colourburst runs for kids making this a great family event.

A large finishers medal awaits runners at the end along with a huge buffet of tasty treats!

We have really good group discounts;

10-19 runners save 15%
20-49 runners save 20%
50+ runners save 25%

Email us to get a discount code for your club or group, dG9tIHwgcmVsaXNocnVubmluZ3JhY2VzICEgY29t

You may also like the following events from Relish The Great Outdoors:

• Next Sunday, 8th March, 09:00 am, Larmer Tree 8th March 2026 in Shaftesbury
• This April, 19th April, 09:00 am, Bath & Bristol Railway Races 19th April & 11th Oct 2026 in Bath
• This April, 26th April, 09:00 am, Eastnor Castle Mud Bath 26th April 2026 in Great Malvern

Also check out other Sports events in Caldicot, Kids events & activities in Caldicot.