Too sparsely plotted compared to other Pokemon region maps, IMO, and the picture itself is too fuzzy to tell land apart from sea. Every region has cities that don't have gyms, also.
[agelimit]competent competitors[/agelimit]
Ichida, the Zealous Blue Partizan
Pearl Battle Record: 105-26
Battle Style: 6v6 Lv100 Singles, No Hacks, Ubers or Legendaries

To gamingly entertain the crap out of you. Yes, I said 'gamingly.'