A giant cauldron filled with slime and turned into a map. Unfortunately it can't be too big / detailed because, well... the server needs small maps...

You can check out a quick montage here if the attached video isn't working: https://www.youtube.com/watch?v=YHlxd_QWbbE&feature=youtu.be

I give permission to the owners of Super Craft Bros to use this as they will, but them alone. Anyone is free to download this map and try it out for themselves, but it really isn't much. Also, the file may contain some random things to do with mods or 1.8 stuff, but it will still work fine. Just remember this is for 1.8 Minecraft.