Obtaining the Zora Mask.
The Zora Mask is obtainable in the game The Legend of Zelda: Majora's Mask. This mask allows you to transform into a famous guitar player from the Zora Band, The Indigos.
This allows you to swim under the water for an unlimited amount of time and to even attack under water, by throwing retractable fins or using multiple hand to hand combat manuevers.
These attacks can be used above land aswell.
 How to get it
You receive this mask by helping the sick Zora near the Great Bay. After playing the Song of Healing, he gives you this mask.
Related ThreadsGoron Mask, Gerudo Mask, and Zora Mask - last post by @ Mar 25, 2002
Your Favorite mask(Deku,Goron,and Zora Masks not included) - last post by @ Mar 16, 2010
Masks! - last post by @ Nov 7, 2014
Favorite Transformation Mask - last post by @ Apr 26, 2012
What is your fav. mask? - last post by @ Apr 2, 2003