Trecastle (Welsh: Trecastell) is a village in the Becon Beacons, Wales. Get in A40 between Llandovery and Brecon. Buses travelling between the two towns stop in Trecastle. Get around See Two concentric circles of small stones. A Roman marching camp occupied the site Castle Tump (Trecastle Motte), 51.9491°, -3.63102°. mound remains of 11th-century motte and bailey castle 2016-11-19 Do Trecastle is at the heart of hiking country. Gilfach Equitation, Gilfach Farm, Sennybridge, 51.959129°, -3.603548°, +44 7899 892-582. Horse riding. Hacking and instruction on well schooled horses Buy Eat The Tanners Arms, Defynnog, (south of Sennybridge), 51.937355°, -3.563839°, +44 1874 638032. 2016-11-19 Drink Sleep The Bunk House, Ynysmarchog Farm, 51.945°, -3.633°, +44 1874 638000. Castle Coaching Inn, 51.949329°, -3.629931°, +44 1874 636354, enquiries@castle-coaching-inn.co.uk. Accommodation and restaurant Go next Wales' sea-side city of Swansea - a one hour drive. The mountain market town of Brecon is a thirty minute drive. Pictureque Llandovery is a fifteen minute drive.