The Korok Mask is one of several new items added in The Master Trials DLC for The Legend of Zelda: Breath of the Wild. Let’s talk about where to find it.
This special item is located inside a treasure chest within a Lost Woods hallowed tree. First, head to the Lost Woods with a torch, a location near the Woodland Tower that you must pass through to get the Master Sword.
Once in the Lost Woods, the trick is to let the wind guide you. Light your torch near the entrance and watch how the flame moves as the wind blows. Follow this direction West and then North to find the hallowed tree.
Functioning similar to the sheikah slate and shrines, the Korok Mask allows you to more easily find koroks, of which there are 900 in the game. All you need to do is toss the mask on in order to receive its benefits. Enjoy!