As the good weather was coming to an end, we decided to take a short walk on Thursday and as my mate's back wasn't too good it would have to be a fairly easy one. We took the BR train to Blaenau Ffestiniog and as we left the station bumped into a local mate who told us to follow the narrow gauge down Glan-y-Pwll Rd and shortly after the King's Head ("Y Tap") take the signed footpath over the railway and follow it over to Tan-y-Grisiau. As we climbed up the views behind us back to Blaenau and over to Trawsfynydd opened up and it was a beautiful day. We passed through a couple of gates and stiles and soon the lake came into view and we dropped down back over the railway and down to walk across the dam and back at the end of the lake,where we had our butties, with good views up to the Stwlan Dam high up in the Moelwyns, and all the old tramways and inclines used by the slate miners up in Cwmorthin years ago. We walked back along Glan-yPwll Road as the train passed us (pulled by the loco "Merddyn Emrys"!) and had a coffee in the town before taking the BR train back down the valley. A nice easy walk with beautiful views.