How to download map for offline usage?

At my working place we have internet connection only for certain website for us to get info. But I need to use the map at times. I can't even go to Google map. Can anyone teach me how to download map and the process doing it? I would appreciate it very much. Thanks!

?2014-10-03T22:32:25Z

Sora and Riku are together. We have no part to play here.