Minecraft wiki entry for Turtle_farming, associated text: Find a beach in a warm ocean biome, or a beach next to a warm land biome such as desert or savanna, where turtles have already laid eggs. You need turtle eggs to start the farm working and producing. You must build the farm around eggs already laid by turtles or use a tool enchanted with silk touch to pick up eggs and then place them in your farm. If you don't have a silk-touch tool, just build your farm around the eggs.