... to add some shipwrecks @ the bottem of the sea? (near shore or coast, off course on spots where you can actually see the bottem) I think that would give that lil extra dynamik to the surroundings. And also, when you sail over it, an icon should apear wich says to dive there to see of there's a treasure inside. Of course no "visual" diving (altough that would have been pretty nice), but more time related.