After you finish the "chicken suit" part you will see two enemies. There is a red one with a shield and a bluish-gray one without. After you kill them you will see a pole with three prongs. Go to it and jump up. You will see a rock wall crumble, opening a path. After you go through the path there is a cave to your left. Swim through the water. You will find a small opening to your right with three bolder-like objects. If you break them open you will get some money to buy shaman jewelry.