The Fairy Islands are a series of islands in the Great Sea in The Wind Waker. Each of the islands is shaped like a heart, but the hearts are all facing different directions. On every Fairy Island is a conch shell-like structure in the middle, and the islands themselves seem small and empty. If Link enters the structure in the middle, however, he enters what seems like a whole new world. The walls seem like falling raindrops, and there is a monument with a little bit of water in a quiet, serene room decorated with seashells. When Link walks towards the fountain, he notices a small, blonde fairy alone in the middle. That fairy looks at Link, spins around a few times, then explodes in a blast of magic energy and transforms into a Great Fairy. Each Great Fairy on all of the Fairy Islands looks the same, and each gives Link some upgrade to him that will help him on his adventure. The Fairy Islands also have their own different puzzle of entering to the fairy fountain; Link usually is not able to just walk in.
Northern Fairy Island
- Main article: Northern Fairy Island
Northern Fairy Island is located two squares east of the Forsaken Fortress. The Great Fairy on this island will upgrade Link's Wallet. Link will also find a Submarine that contains Treasure Chart #22.
Western Fairy Island
- Main article: Western Fairy Island
Western Fairy Island is located two squares south of the Forsaken Fortress. The Great Fairy on this island will upgrade Link's Quiver.
Eastern Fairy Island
- Main article: Eastern Fairy Island
Southern Fairy Island
- Main article: Southern Fairy Island
Southern Fairy Island is located two squares west of Forest Haven. Link can meet a Great Fairy on this island to upgrade his Bomb Bag. Additionally, there is a Piece of Heart underwater around this island, but can only be obtained after Link buys the Treasure Chart from Beedle.
Thorned Fairy Island
- Main article: Thorned Fairy Island
Thorned Fairy Island is located two squares east of the Tower of the Gods. The Great Fairy on this island will upgrade Link's Quiver. Additionally, Link can get a Piece of Heart, found from a Sunken Treasure Chest, found from acquiring a Treasure Chart.