The Random Wilderness is an island in the First Sea. It is roughly located between Marineford and Dawn Island. It's located next to New Alabasta. This island bears no physical resemblance no any location in the original series and is therefore non-canon, but it may be based on Rusukaina Island.
This island features a grassy terrain with a tall stone tower. The island contains no enemy NPCs, set spawns, or quests. Instead, it features Rayleigh, from which the player can unlock Haki for B$700,000.
It is located behind the rocky walls of Ice Island.