Minecraft wiki entry for Advancement_guide, associated text: You can also get this advancement by traveling downwards 50 blocks, so you can get to the top of a tall end city (more than 50 blocks), and be hit by a shulker. You will be granted the Levitation effect. Next, get at least 8 blocks away from the end city, and then eat a chorus fruit. Because of the way chorus fruit teleportation works, it will teleport you directly on the ground, and you will get the advancement.