The Zora are one of the oldest races in The Legend of Zelda series, and they’re back once again in Tears of the Kingdom with the ever-icon Sidon making a triumphant return as well. He’s central to the completion of the main quest line you’ll play through regarding Zora’s Domain, but you’ll have a hard time following him without the Zora Armor allowing you to swim up waterfalls.
You’ll get the Zora Armor as part of the story, but the Zora Greaves and Zora Helm are easy to miss – unless you’ve got our guide to finding the Zora Armor Set.
This guide contains spoilers for The Legend of Zelda: Tears of the Kingdom, specifically for the Zora's Domain portions of the game.
How To Get The Zora Armor
The Zora Armor is likely the easiest piece of the set to obtain, because you'll need it to progress the story. Just like in Breath of the Wild, wearing the Zora Armor allows Link to swim directly up waterfalls again.
After triggering the "Sidon of the Zora" quest by progressing the main story, head to the Zora's Domain Infirmary to find Sidon's fiancee, Lady Yona. She needs one Ancient Arowana to repair the Zora Armor she'd like to give you. She suggests you find Dento over on the East side of Zora's Domain, who can tell you where to find one.
If you happened to get one on Great Sky Island, you can skip everything involving Dento and his advice, and give that Ancient Arowana to Yona to fast-track the quest.
After speaking to Dento, head to Mipha's Court, which isn't far from the peak of Ploymus Mountain to the East of Zora's Domain - Ihen-A is the closest shrine.
Climb the stairs up to Mipha's Court, and you'll find a few Ancient Arowana in the pool - return it to Lady Yona to receive the Zora Armor.
How To Get The Zora Greaves
You need to finish "Sidon of the Zora" before you can trigger the quest to locate the Zora Greaves.
Return to Yona back at Zora's Domain, who wants to thank you by giving you the Zora Greaves but can't tell you where they are exactly. She directs you toward Sidon and the Ancient Zora Waterworks, which begins the quest, "A Token of Friendship."
To access the Ancient Zora Waterworks, check out the whirlpool in East Reservoir Lake, just East from Zora's Domain. Drop through the hole here when you arrive, either fighting or carefully avoiding the Stone Talus at the bottom.
Go Southwest from here, where you'll find a waterfall with a cave behind it, which has the treasure chest containing the Zora Greaves inside.
How To Get The Zora Helm
Head back to Zora's Domain and seek out Khira and Chroma, who are by King Dorephan's Throne. They'll be talking about the Zora Helm, which triggers "The Never-Ending Lecture" in your Quest Log.
They mention a fish, but what they're referring to is actually Floating Scales Island. You'll have been here already, so fast-travel to Ihen-A Shrine in the sky, and paraglide to the island East of it.
In the Southeast part of this island is what's meant to be the fish's tail, from which you'll see a small cave if you stand on the tail and look North. Paraglide down to it and the Zora Helm is just inside the chest here.