http://www.planetminecraft.com/project/circuli-civiaem---boats-and-the-castle/

Please visit his page for the full details and eventual download.

On the server my friend runs we have been working on this giant city - soon to be death match arena - for the past 6 months or so. It is almost complete now and will be uploaded to the public for download soon!

Additional Notes

This project has been a team effort from players;
'Ruscheinski', 'Moonflowerer', 'Raging_Nucleus', 'MehBlah', 'RustyFender', 'Braeden567' and 'Skarz'
There were also additional help from various players on the server.