Oki is a biologically diverse island in the Kentoku Archipelago.
Oki is as close to a jungle as is possible in this climate, though severely lacking when compared to Mata Nui’s Le-Wahi jungle swamp or Ga-Wahi river delta. As most of the islands are deficient of animal life, this island is the largest remaining home to dozens of near-extinct plants and animals, the only other known specimens being in captivity in the gardens of the Imperial Palace. A thriving population of minor clans lives on Oki; they are generally ambivalent towards the politics of the empire, unless the sanctity of their island's natural beauty is brought into question. The Umbraline Clan hailed from Oki, and still carries weight in the island's day-to-day affairs.