There are six Great Fairy Fountains in the Ocarina of Time remake. If you find one and make an offering, the Great Fairy who resides there will grant you a special upgrade or ability. The sixth and final Great Fairy Fountain can be found by Ganondorf's Castle. Technically, you'll be able to reach it right after obtaining the Master Sword, although to actually get inside, you'll need an end-game upgrade.
This bodes well, as the Ganondorf's Castle Great Fairy gives you the most OP upgrade in the Ocarina of Time remake. As the name suggests, the gift of halved damage doubles your defense, making powerful enemies like Iron Knuckles a whole lot easier to deal with. This guide will cover how to find the last Great Fairy Fountain as well as how to get the Golden Gauntlets that you'll need to get inside.
To find the Ganondorf's Castle Great Fairy Fountain, head towards the area that used to be Hyrule Castle while playing as adult Link. Follow the path to your right and look for a large black stone with a gold pattern on it. The Great Fairy Fountain is behind this stone, but to move it, you'll need an upgraded version of the Silver Gauntlets.
To get the Golden Gauntlets, you'll first have to complete all five temples and then head inside Ganondorf's Castle. Around the outside of the inner area are five doors: one for each of the six sages. Look for the door of the Shadow Sage, which can be identified by the purple triangle above the doorway.
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