It seems like this is a map by an independent creator. Unfortunately we don't have any details on this, so I would recommend reaching out to the community for an answer! ^NS
The Minecraft community isn't just in a single place, so you can definitely ask questions like this in a number of places! However, we do have a Community hub on our site that may help get you started: msft.it/6019k0tBd ^NS

Dec 2, 2021 · 6:45 PM UTC