Brecon Beacons National Park

Leaving Tretower, continue down the lane, beside the house, and turn right on the A40. If the weather is fine, you can enjoy an almost circular driving tour through the Brecon Beacons by turning left towards Llangynidr and, after crossing the river, taking a right turn to Cwm Cronon and Talybont-on-Usk. Here you turn left and follow a beautiful wooded valley alongside lakes and over the hills to Pontiscill. On a fine day it is a spectacular drive along a narrow paved road, but this is not a trip to be appreciated when the clouds hang low over the mountains and visibility is not good. From Pontiscill the road weaves down to the outskirts of Merthyr Tydfil where you turn right on the A470 along another lovely valley and climb the stark, bare escarpment over the pass to Brecon.