sentences:  The easiest access to the lake is from the B4407, which runs from the A5 near Pentrefoelas to Ffestiniog, near Blaenau Ffestiniog.A right turn from Ffestiniog leads to an old house called 'Llyn Cottage' (often used for night fishing by Lord Penrhyn and his friends), where there is parking and an access path to the lake.It can also be approached from Penmachno, taking the left hand turn sign posted Ysbyty Ifan.