The Legend of Zelda: Tears of the Kingdom brings back traditional dungeons to the Legend of Zelda franchise with its four temples, each with a series of unique puzzles to solve. Completing a temple will reward players with the powers of a Sage to use in both exploration and combat, in addition to progressing Tears of the Kingdom's main story, so they are better completed sooner rather than later. Tears of the Kingdom's Water Temple is an important dungeon that can be found by completing the "Sidon of the Zora" quest.
Source：https://www.cbr.com/zelda-totk-water-temple-guide/
