Well, it is too complicated. I think fountains,
bonsai trees and meteorites must be removed.
My variant of region map:
Denko Region- more routes + 2 oceans- as
in Hoenn- Southropic and Nordream, with
3 caves in it. Press all buttons in this caves,
and Chamber of Ravens, where legend waits.
Undersea Tunnel can help you to find isolated
place- Sargas Lake, lake in sea, where lives
main legend- Garsead.