See Grath City
http://www.youtube.com/user/gagwee#p/a/u/0/6Mttl3mKkvA -A video of the region and city, it's kinda old though so don't listen to the stats
Geography of Grath City
As you may know, the city is built on a peninsula. How this peninsula was formed however, is a different story. Geologists say the region was formed from an underwater mountain range that peaked above the water. Although, the only mountains in the region are far south. The geologists say this is because of millions of years of erosion.
[updates merged - Chptrk]