https://www.dropbox.com/s/d4283y1ml9yszg7/DCWild.jar Don't mind the name(was another plugin request), command: /wilderness, radius configurable in the config, not the same but it is something, also safe for water and lava
timtower - appears to work ok for me but you did forgot to mention that you need to add a world to the config file first - perhaps that's the issue EverCandy had.
EverCandy Try the config, apparently there is an option for the worlds XD ( long time no use ) Ty Zarius
EverCandy - also, I forgot to mention that if you need the command to be /random you can change that in the plugin.yml file inside the jar.