a singlehanded nonstop RTW attempt around the three great capes in a Mini Transat boat! (21 footer)
http://www.alessandrodibenedetto.net/index.php?option=com_content&view=article&id=59&Itemid=63&lang=en
Of course, some people might not call that "cruising" (But the skipper Alessandro di Benedetto has a different view of things, clearly...)