The county of Caernarfonshire, or Caernarvonshire in English, is part of the Gwynedd administration area and also includes the administration area of Conwy in North Wales and includes a large part of the Snowdonia National Park together with Snowdon itself. Snowdon is the highest mountain in England and Wales at 3560 feet.

This is spectacular countryside with, in fine weather, spectacular views for walkers and motorists and both should take care. The roads are winding and narrow enough in places that two vehicles cannot pass, frequently with stone walls on both sides, and for walkers there are many easy footpaths although some are much more precarious.

There are many picturesque towns and villages with many points of interest including the coast. Attractions include a narrow gauge steam railway that winds its way up into the mountains, slate mines, a medieval walled town with a castle, some fine beaches and legends galore.