How do you find the fourth key in eldin volcano on the legend of zelda skyward sword?
To get the fourth key in Eldino Volcano in the Legend of the Sword, you will need to jump off of the right hand side to the right of the next fork. Then you can slide the outcrop on the left and look for the two vents around you. When one blows, wait for the other one to show fire and link it to the land. Visit http://www.gamespot.com/features/the-legend-of-zelda-skyward-sword-walkthrough-6344521/?page=28.