Snowdonia, or Eryri for Welshmen, is a region in North Wales, and at the same time a national park of 838 square miles (some 2,170 km2). The highest mountain is the Snowdon, 1,085 meters (3,560 ft), which in Welsh is called Yr Wyddfa. What a beautiful name.
Should be a piece of cake. Wait...
P.S.: pics stolen from Wikipedia. Being an outlaw comes in quite handy.