The King of Lakes (湖のヌシ, Mizūmi no Nushi?) is a huge amphibious fish-like creature found in the largest lake in the 22ndnd Floor of Aincrad. It could only be encountered by using a special bait, which looked like a lizard, and required a very high fishing skill to lure the monster, while a very high strength skill to draw the monster out of the lake. It had the ability to swim as well as walk on land.