Zora Village
In Oracle of Ages, Zora Village is an underwater village inhabited mostly by Zoras. It is home to the great Jabu-Jabu, and it is also where another Essence of Time resides. The Zora Village can only be reached after Link has obtained the Mermaid Suit and learned the Tune of Ages.
In the past, King Zora has fallen with an illness due to the polluted water coming from the east. If Link does not give him a medicine in order to cure his sickness, the King Zora will not leave a successor to the throne, and the Zoras will be without a king in the present time. Once the king in the past time is cured, the King Zora in the present will grant Link the Library Key in order to research the causes on why the water of the Zora Seas has been so polluted lately. The young hero along with a Great Fairy rid the sea of its pollution in the past time, which grants Link permission to enter inside Lord Jabu-Jabu during the present time and receive another Essence of Time in the process.
As Link exits the insides of Jabu-Jabu, a Zora interferes his path and thanks Link for all that he has done for the Zora people, granting the young hero a Zora Scale for his help.