Created by Hypixel (Download Link Below)
How To Install World Save: Download the .zip file, on your computer go to your start menu (or Finder on a MAC) and type %appdata% in the search bar, now go ahead and open your .minecraft folder, next open the saves folder. Drag the .zip file you just downloaded into your saves folder and extract. Close all windows, and run Minecraft.
Need Help - If you encounter a problem while using a world save or map and want to report it, we ask that you first remove / uninstall the world save and see if the problem still happens. If the problem continues without any world saves installed, you can go ahead and report it on the bug tracker. Otherwise, click on the chat option at the bottom of your screen, submit a ticket, and wait for a response.
How to install and use an MCEdit filter. Watch the video tut below!
ALT – If the link below is no longer working, you can simply request an alternative download link by clicking on the chat option at the bottom of your screen, submit a ticket, and wait for a response.
Download Link – Withers Challenge World Save