Nenya was known as the Ring of Water and the Ring of Adamant. Nenya was one of the three Elven Rings that were forged and fashioned by Elven smiths who used knowledge that was given to them by a disguised Sauron. Unknown to them, he bound the rings to his One Ring of Power. When the Elves learned of this, they hid the rings and refused to wear them so that they would not be bent to Sauron's will. When the One Ring was lost by Isildur, they used the rings. Nenya was worn by Galadriel. She used the ring to protect Lothlórien from the effects of time. Nenya and Galadriel's identity as a Ringbearer were revealed to Frodo at the Mirror of Galadriel.
In The Return of the King:
As a Ringbearer, Galadriel left Middle Earth with the other Ringbearers when they all departed from the Grey Havens for the Undying Lands.
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