Minecraft wiki entry for End_portal, associated text: Stepping into an activated end portal immediately opens up a loading screen and transports the player to the End—this leaves no time to back out, like entering a nether portal in Creative mode. Upon entering the End, a 5×5 horizontal platform of obsidian is generated centered at block coordinates (100, 48, 0), and the player is placed on top of it (100, 49, 0, facing west).