If anyone plans on driving to Wales either to or near Mount Snowdon or the national park in general, here's one tip...
DO NOT DRIVE HERE WHEN IT GETS DARK!
Now, I love driving and don't mind it in the dark but this was the most dangerous road I've been on (the a5). Torrential rain, bendy and narrow roads, windy conditions do not make for a pleasant drive. Let alone it being pitch black and most of the road having no street lighting. What's more daunting is the fact you're on a road in the dark and either side of you is pure darkness as well as its just mountainous and no sign of life. Makes it quite eerie!