A 2-day circuit of the southern Rhinogydd mountains around the Afon Ysgethin valley.
The outward route follows the Afon Ysgethin to Pont Fadog and a section of the Taith Ardudwy (The Ardudwy Way) along the southern flanks of the valley and ascends to the cirque of mountains at the west ridge of Diffwys.
The return from Y Llethr descends via the south-western slopes of Moelyblithcwm to the Llyn Bodlyn track on the northern flank of the valley.
On this trip we took enough food for three days to give a possibility of an exploration of the lakes around Rhinog Fach, the choice being made on the second day depending on the weather and the terrain of the proposed line of the route, but the dull dank conditions of that second morning decreed that the intense effort required would not be worthwhile and we descended directly from Y Llethr. The first day was excellent though with sunshine and good clarity.