Kaukau

The Kanohi Kaukau is the mask of underwater breathing. It allows the user to breath underwater. The Kaukau Nuva allows the user to extend the depth at which this mask will work. It should be noted that this is the only Nuva Mask that does not exend the power to others.

Known Users
Gali: Used a blue Kaukau and later as a Toa Nuva she used a blue Kaukau Nuva.

Hahli: Hahli used a powerless blue Kaukau as a Matoran but later wore an Elda as a Toa Inika.

Nuri: Nuri wore a black powerless Kaukau as a Matoran