RedactedNarrative: Boat A was traveling south under sail power off of the Kenosha WI shoreline on Lake Michigan.  Boat B was traveling west under sail power towards the Wisconsin shore of Lake Michigan.  Due to several factors, including operator inexperience, a blocked view and a failure to maintain a lookout, the bow of Boat B struck the midship port side of Boat A.  Both boats sustained damage, but both were able to return safely to shore.  No injuries were reported.