Go past the Easter Island head for the clam. Click the weeds and get the bottle full of water. Go to the end with the mermaid and take the pink flower. Give the pink flower to the crab and get the first pearl. Put the bottle over the bubbles to get air. Scare the fish away with the bubbles to go inside the Easter Island head.
Get the bone. Get the rusty bar right next to the head. Use the rusty bar to remove the wood. Get the key under the basket. Put the bone with the other one on the wall.