Hi, I would like to see a real navigation challenge mission in this simulator. That would be a real passanger ferry line between Turku (Finland) and Stockholm (Sweden). This line goes through large and dense archipelago having narrow, shallow and rocky waters, and by using very large ferries. Two line operators are Viking Line (www.vikingline.fi/merella/index.asp) and Silja Line (www.tallinksilja.com). I know that even foreing professional captains find it challenging to cruise here so that would add a real teaser for all ship simulator users. Map and lines can be viewed at http://mapsof.net/saaristomeri/, or google for "saaristomeri". As a leisure boat skipper boating in these waters, any open water cruise seem a bit boring so why not try who really can navigate.