North of Criccieth on the B4411 is the little village of Rhoslan, blink and you'll miss it, at the southern end of the village there is a small lane with a bridle path sign leading east. Park here. The burial chamber is ahead through a gate on the left side of the field. (following this path leads to Ystumcegid dolmen eventually, but I don't recommend that route)
Like nearby Caer Dyni I haven't been here for over a decade, my memory of it is one of slight disappointment, perhaps due to seeing all the better examples first, or maybe it was the way one side is too open, as if a couple of uprights had been taken away.
But my new memories of it are those of best site of the day, nay, star of the day. We got to quite a few sites today, one was just a pile of stones, one was just a stone, didn't find another, and another was basically just a lean to, they all had something great about them but right here right now Cefn Isaf is just what the doctor ordered.
A great big, it has to be said, axe like capstone held neatly aloft on strong thick legs, the stream running by very closely, swallows skimming for flies, a dog walking couple go by and the sun streams down upon me. Next to the stream up and down from the chamber are a number of large stones one a big round boulder another is a large flat stone, I wondered if the stream had always been there. Eric had elected to stay and wait in the car, but I was at such peace sitting comfortably in the chamber looking out at the bucolic scene, like a tranced out football coach in his dugout, that when he appeared round the corner and into the chamber I was fair startled, jumped and almost bumped my head, bloody kids, always sneaking about the place. We sat silently for a while, him between my feet, sharing the view, then he stated his need for a number two and can we go now.
Yes, yes we can.
Cefn Isaf sits in a field, which at the time of my visit was completely overgrown. The sun shone down and we chilled here for a while - Mrs IM commented that the site looks just like a Megalithic bus-stop. The capstone is huge as is the slab at the back of the chamber.
We started here, intending to take the path up to Ystumcegid. When we reached the concrete bridge between the two sites found that it was closed. It definitely wasn't worth the risk, so we turned back - vowing to return to see Ystumcegid another day.