Snowdonia, Wales is one of the most amazing places I have ever visited, if your every planning on coming to the north of Wales, I would encourage on coming in the summer months as their is less of a chance that poor weather will strike. Weather in Wales is the biggest factor that will determine you judgment.
If you are a fan of hiking and mountains then this the place for you. Snowdonia holds Wale's largest mountain which is Snowdon, hiking up it can take in a good 2 hours. There is so much to see if you a person that is into nature and the outdoors.
Getting to Snowdonia can sometimes be a challenge depending on where you are coming from, I had taken a train from London up to the north of Wales more specifically Bangor and from there it took a Taxi to a small town called Llanberis.
I hope this help you guys if your ever thinking on coming to Wales and do not know where to go then this is a good place to go.
Please comment and let me know where your travels.