Lake Mobius (メビウス湖, Mebiusu-ko, or 巨大湖メビウス, Kyodai-ko Mebiusu—lit. meaning "Giant Lake Mobius") is a massive lake in the center of the Dark Continent. It is conventionally divided in three sections: "Human Territorial Waters", which encompass the relatively diminutive territory occupied by mankind, "Untamed Waters", where the New Continent is located, and "Dark Waters". The latter two are divided by the "Border Waters", an area where passage is regulated by the Gatekeeper. However, the public at large is aware of a different partition, that of "Territorial Waters" and "Uncharted Waters", which in reality accounts only for the two bodies of water before the Gatekeeper's territory.