No special access issues
🚶♂️ From Pen y Pass:
Join the masses walking up the Miners Track up Snowdon until you round a slow right bend, from which you should see the pipeline and further on, the Cwm Dyli boulders. From here it is simple: leave the path to the left, drop down the grassy hillside, cross over/under the pipeline, traipse through the bog and eventually arrive, somehow, at the boulders.
If Pen y Pass is full - or too expensive - there is further parking past the Pen y Gwyryd on the side of the road past the county boundary into Conwy. From here, walk back to the junction but ignore the road turning on your right and keep going downhill for 200 yards. A track with a gate will appear on the right and a footpath that leads you to Pen y Pass, adding around another 20 minutes to your walk in. Please do not walk up the road.