In a Minecraft world, if players have cheats enabled, they will have access to a plethora of commands through which they can change the core mechanisms and settings of the game. However, in Java ...

You can turn on cheats in Minecraft by enabling it when you create your world, or by going into your Settings.

You can teleport almost anywhere in Minecraft using the "/tp" command, but you'll need to enable cheats in your world first.