Me and my friends have been making lots of parkour on the creative worlds and we thought that we could make one for the parkour maps. If there is any way we can contact someone or if there is a way to submit one, please let me know. :) thanks.
I'm no mod, but I can still be of assistance. Click here to access the 'map submissions' sub-forum. Follow the preconditions on MrDeathWilliam's tutorial; that can be found here. Those posts should clarify everything.
The only problem is that it may have been built on the creative servers which if true means you can not get the maps off there. Unfortunately this means you cannot submit maps to the server.