Minecraft wiki entry for Island_survival, associated text: Craft shears and use it to collect some seagrass, then breed turtles, which spawn on the beach. They lay turtle eggs; make sure to protect them as the undead, stray wolves, and cats try to break it. When these eggs hatch, make sure to not let those baby turtles get to the ocean before growing up. The recommended strategy is to fence them in (during their egg stages). Now protect the baby turtles from zombies and skeletons. When those turtles grow, they drop scutes, an item used to craft turtle shells, which is a useful helmet because it has the same protection as iron, lasts longer than iron, and allows you to breathe underwater longer.