Boat over to the huge wall on the western side of the chamber. Use the bombs to destroy the walls, get out of the boat, and climb into the new area. First, grab a stick and light it. Wait until the water drops and run down and light the torches on the lower level. A chest with a joy pendant will appear. Now go through the door at the top of the stairs.
Kill the flaming skull and grab the compass. Return to the main chamber and go downstairs to the lower door. Kill all the chuchus in this room, and the light stairs will appear. Climb up, grab the statue, and head out into the main chamber when the water drops. Place the statue on the recessed area at the top of the stairs, which will reveal a new entrance in the center of the chamber. Board the boat, sail over to the entrance, and climb in.
In the next room, you'll need to get rid of the beam with a bomb. This isn't easy unless you just hold a bomb and run up to it, which will hurt you but will dispose of the nuisance. Grab the statues and place them on the glowing circles. Stand on the third circle to activate the platforms. Make your way up, and notice the lone platform floating at the top of the room. Jump up to it and set a Tingle bomb to find the third Tingle statue (again, you can only do this with the GBA).
