The Legend of Zelda: Twilight Princess

There are rooms above the room that you exit from to get to that area. Check your map until you get to the top most room and defeat the giant rhino-like creatures (sorry haven't played in a while). now there is a globe type thing somewhere on the roof use your hookshot to latch onto it you may have to put on the iron boots to make it go down and that should stop that sideways fan from moving. now there is a hole in the floor that will let you quickly get to the room below this room. after dropping through the hole latch on to the grate ceiling and lower yourself through the fan in the hole until you can't lower yourself anymore andlook around the ceiling of the main room and there should be another globe-type contraption. again use the double hookshot to latch onto it and put on the iron boots and the giant fan should start moving. now go through the door beneath the fan and you should be able to cross the gap now.