The Legend of Zelda: Ocarina of Time Tips

More Attack Chances Against Volvagia
When the part where he flies up and send rocks down comes, go somewhere safe (probably near the edges of the area) and if you’re good at aiming arrows, shoot one at him while he’s flying; if you’re not, then just evade the rocks. Whether you did shoot or not, he’ll eventually start to land, so shoot this time and you can hack away. The advantage of shooting him in the air is that it’ll finish the job quicker.