How do I get to the big key with the eye on it in the ocean temple on the..

First read the stones carefully, use the boomerang to get the balls from rolling on the first floor, defeat the whip guy, get the whip, pull the switch that is farthest from you, take out all the 3 swords from the bottom part left side, pull out the 3 thorns, see which order to put the swords in on the floor before that, put the the swords in that order, go around the bottom left side and pull the red thing, hold onto it and when you get to the stop, go in the door, get rid of the 2 monsters, go to the floor where you had to find the order of the swords, go to the ditch and get the key. Go back to the floor before that, go through the door (use the key to get through that door) and go up the stairs, get the big key, go across the bride that just appeared, throw the key across the bridge, and get rid of the hand monsters, grab the key and run up the stairs!!!