You can find several hidden Fairies in The Legend of Zelda: Ocarina of Time throughout ... Block the rocks with your Hylian shield and once they stop, walk down the mountain until volcano erupts ...
Talk with Malon 3 times and then take out the Ocarina ... time. Now pull the headstone with the flowers - the second one from the left - on the first row of graves to reveal a small hole in the ground ...