Great Fairy Fountains
Hidden throughout the land of Hyrule are six Great Fairy Fountains. The Great Fairies inside will give Link helpful power-ups and magic spells that increase both his offensive and defensive power.
In each Great Fairy Fountain, Link must stand on the golden Triforce emblem and play Zelda's Lullaby to awaken the Great Fairy and receive a new ability.
Fountain Locations
Death Mountain Peak
Reward: Spin Attack
The first Great Fairy Fountain that you are likely to encounter is at the top of Death Mountain. After obtaining Bombs and the Hylian Shield, journey to the mountain's peak. Find the flagpole nearby Goron City and climb the adjacent slope. Use your Bombs to destroy any boulders blocking your way. Soon after the mountain will begin to erupt, and shower you with debris. Equip the Hylian Shield and crouch to protect yourself, continuing only when the showers momentarily pause. You will eventually reach a wall which you are able to climb, but before doing so, kill any Skulltulas clinging to it. Once you have climbed the wall, you should find an entrance to Death Mountain Crater on the right, and a conspicuous rock wall on the left, with a sign post and owl in between. Use a bomb to destroy the rock wall and gain entrance to the Great Fairy Fountain.
Hyrule Castle Grounds
Reward: Din's Fire
Enter the Hyrule Castle Grounds and climb the nearby vine to avoid the gate blocking your path. As you reach the gate, either go down the ladder into the guard room or jump off the gate roof. If you walk across you will be caught. From there walk up the road until the path branches. To your right should be a sign that says dead end and a boulder at the end of the path. Use your bombs to destroy the boulder and crawl through the passage to enter the Great Fairy Fountain.
Zora's Domain
Reward: Farore's Wind
Go to the portion of Zora's Domain where Jabu-Jabu rests. Swim behind him to a small peninsula with bushes and a lone tree on it. There is a boulder next to the back wall. Place a Bomb next to this wall and it will be destroyed, revealing another Great Fairy Fountain.
Death Mountain Crater
Reward: Doubled Magic Meter
As an adult, enter Death Mountain Crater, preferably through Darunia's throne room. To your right should be two boulders blocking a passage. Use the Megaton Hammer to destroy the boulders and enter the Great Fairy Fountain.
Desert Colossus
Reward: Nayru's Love
When you first reach the Desert Colossus from the Haunted Wasteland, look towards the right wall for two nearby palm trees. Between these two trees is a suspicious wall that can be destroyed with a Bomb. Use a Bomb to access the Great Fairy Fountain.
Ganon's Castle
Reward: Doubled Defense
After completing the temple-related trials in Ganon's Castle and receiving the Golden Gauntlets, return outside the castle and find the dead end near many boulders. At the dead end should be a huge black slab. Use the Golden Gauntlets to lift this slab, revealing the final Great Fairy Fountain.