This time, back in the fence room, jump your way across to the locked door.   The last jump to get there seems impossible but it's not.  Just jump slantwise from the corner of the fence to the corner of the ledge and if you keep holding forward you'll grab on to the ledge and pull yourself up.  Go through the locked door.  Follow the short corridor after it and you'll find yourself in the giant fire maze chamber.  Hop on down and head to the right.  You'll have to dodge spinning flame throwers, rolling boulders, and proximity sensitive flame walls to make your way to a door in the far right wall.  The compass is through that door.  Be wary of fake doors in here.  They'll hurt you if you try to open them.  If you're unsure put a bomb next to it to find out if it's fake or not.  Now head back to the starting point and then to the left side.  Make your way through this maze to the locked door on the pillar in the middle of the chamber.  Go through it and you'll see a trapped Goron on your right.  You can't save him yet.  Instead continue on and go out the door on the other side.

Now you're back on the right side of the maze.  Make your way toward the right wall of the chamber where there's a yellow switch.  If you step on it the big fire wall on the opposite side of the room will disappear for a few seconds.  Hurry (I know it's hard to hurry in this maze, but you'll have to) through to where the fire wall was and run past it before the time runs out.  The door ahead is a fake.  That said, blow up the door with a bomb and then go on in through the real door and face the first dancing fire-man mini-boss.  This mini-boss is really easy if you have bombs...otherwise he's a lot harder, but I recently found out still possible to beat .  All you have to do is throw a bomb at him.  When it explodes he'll shrink to a little helpless black ball.  Slash him a couple of times and he'll run away.  Don't chase him you can't run fast enough.  Instead, hold down B to start charging a spin attack, and walk the opposite direction he went.  Eventually he'll circle around the room and bump into you again.  He'll start running away again before he's very close to you, but your fully charged spin attack has a good range.  As soon as hear him make a scared noise indicating he's about to turn around let it go to teach him a lesson.  If you're low on magic, hide against the wall and he won't see you.  He'll keep running past and as he does slash him with your sword.  Now he'll jump into the flame and become a dancing fire guy again.  Use another bomb and repeat the process until he's dead.  If you run out of bombs you can use your hookshot to pull the little black guy out of the center of the fire dancing thing and hit him with your sword.  Just wait on the steps until he stops skating around the room and use Z-targeting.  Now that he's dead climb up onto the platform where the pillar of fire was and it will raise you up to the next floor.