In reply to davidt2443:
Hi. Yes. I think you mean Pisyll y Llyn, about 300 feet in stages at the head of the cwm. I soloed it last Saturday (3-1-09). I'm a bit newly addicted to ice-climbing, so my opinion isn't based on much experience. From what I know, I'm sure it'd be Grade II in a succession of stages, the steepest one being at the top. There are actually two separate streams producing falls here. I did the left one. The right-hand one, I think, is harder. I found it hard work, enjoyable, a bit 'hairy' at times, and the setting awesome. We're losing the cold weather, now, but one day I'll certainly be back for the right-hsnd branch. If you're local, also check out Craig y Pistyll falls. Hope this may be of some use. Photos available if your're interested. Good luck, Allan.