Hay-on-Wye the north-easternmost tip of the Brecon Beacons National Park, just north of the Black Mountains. The town is just on the Welsh side of the border with Herefordshire, England, here defined by the Dulas Brook. Where the brook joins the River Wye just north of the town, the border continues northwards along the river. The Wye was the boundary between the former counties and districts of Radnorshire and Brecknockshire. The adjacent village of Cusop lies on the English side of the Dulas Brook. The nearest city is Hereford, county town of Herefordshire, some to the east. The Royal Mail depot
River Wye during the event WYE FLOAT, opened by former Olympic ski jumper Eddie the Eagle. The Environment Agency is the navigation authority for the river. The Normal Tidal Limit (NTL) of the river is Bigsweir and navigation below this point is under the control of the Gloucester Harbour Trustees as Competent Harbour Authority. There is a public right of navigation downstream from Hay-on-Wye. Canoes are generally permitted at and downstream of Glasbury, so long as they do not disturb anglers. The River Wye provides for canoeing and kayaking as it has sections suitable for all ranges of skills and free access