Introducing the Brechfa Trail 10K. After our super successful Epic 10K series, customers have been crying out for us to put on another 10K in the beautiful location of Brechfa in Wales. This isn’t something we wanted to rush, we have no intention in organising an ‘average race’. We have taken our time to pick out only the most spectacular locations, and for pure beauty, Brechfa Forest in Carmarthenshire stood out by far as the most breath-taking place to host another 10K.