The End Gateway is a block in the game Minecraft that allows players to travel between the End dimension and the Overworld. It appears after defeating the Ender Dragon and is surrounded by a portal frame. Players can use the End Gateway to quickly return to the Overworld after exploring the End. To activate the End Gateway, players must throw an Ender Pearl into the portal. This will teleport them to a random location in the Overworld. The End Gateway is a useful feature for players looking to efficiently navigate between dimensions and gather resources.