There is parking for several cars on the grass at SH630258 just before the bridleway heading S. (The road from Llanbedr is to be preferred to that from Coed Ystumgwern which has 6 gates across it). You can either follow the bridleway and attack the hill from the E which has a bit of a boulder field to negotiate near the summit, or directly which entails climbing a couple of walls and ascending the steep face. The going is easy.
(1.5 hours, 2.5 miles, 1300’ of ascent)