This is the best designed region by a long shot and I'm tired of people not seeing it.

From walking through a valley of fertile volcanic ash, to a peaceful floating town amidst raging currents, the entire game faces back to it's core theme of the uneven relationship of man and nature. Places, characters, plot, pokemon, it all helps strengthen the overarching theme of the entire game and environmentalist questions.

It's so insane because it's also the only game that even tried to do something like this. The rest of the games feel theme-less in comparison.