This is freestyle project motivated by Pandora flying mountains. I used my own resource pack: SCC HD Photo Realistic Resource Pack and Lagless-Shaders-Mod-Minecraft. In map are allowed commands. At the top of map is bonus chest and also on bottom of map is another one.  

You can change speed of growing vines by using command: 
" /gamerule randomTickSpeed 0 " for stop growing of vines
" /gamerule randomTickSpeed 3 " for default growing speed of vines
" /gamerule randomTickSpeed 30 " for 10x growing speed of vines

You can also change Spawn Point location by command:
" /setworldspawn " or " /spawnpoint "

License is MIT, so you can do anything with map.

Installation:
Just copy content of zipped package into your saves folder:
" \AppData\Roaming\.minecraft\saves\ " 

Have a fun...