The Abyssal Ruins

Color phase.

For those of you who haven't played the Gen V games, the Abyssal Ruins are an area located to the absolute East of Unova, just right of Undella Town, that can only be reached by using the HM Dive. Once there, you have a limited amount of steps (and an unlimited amount of tries) to find rare treasures and all but two of Arceus's plates before the game boots you back to the surface.

Go down there enough times to get all of the treasures, and you pretty much won't need money ever again in the game. Ever!

Sketch:   Lineart:  

Under (and Over) the Sea Gallery

Pokemon World Summer 2014 Main Gallery