In the third dungeon (the lakebed temple) you can skip a big section. Once you have the clawshot, go to the room with the rotating staircase. The water should be flowing on one side. Normally you would then go to the other side and get that water flowing, but instead, use the clawshot and go up on the chandelier. Once there, slowly drop yourself off the side so that you are hanging by your hands from it, then let go. You will have landed on the center pillar and can go on to the boss through the door.