The Corta Lake is a location from The Legend of Zelda: Breath of the Wild. It is a lake in the jungle forest of the Faron region of Hyrule. The lake is fed by the highest of the three waterfalls north of Lake Floria.
DLC Side Quest
As part of the "The Champions' Ballad" DLC, Corta Lake is one of the locations where Misko the great bandit hid the head Armor of Phantom Ganon's "Dark Armor" set which he stole from Hyrule Castle during the Great Calamity. This piece of armor is known as Phantom Ganon Skull which can be found in an EX Treasure Chest underneath Corta Lake's waterfall which can be dredged up from the bottom of the lake using the Magnesis Rune.