You can find many downloadable maps
here. I don't know which is the "best" map but I'm sure you will find many you would like.
To download them:
1) First click the download link on the map thread.
2) Once downloaded, you should find files (.fhm, .fho, .fhs and .fhw) included in a folder.
3) Go to your Feralheart >> Export folder and drag all those files there.
4) Open Feralheart and go to Cape of Distant Worlds. The map portal should be there.
Hope this helps