God Valley

God Valley was an island located somewhere in the world where an incident known as God Valley Incident took place. The island has since disappeared without a trace.

Geography
The island is characterized by tall cliffs and canyons.

History
An incident between Monkey D. Garp ailled with Gol D. Roger against the Rocks Pirates took place here 38 years ago. After the battle, the island mysteriously vanished without a trace.