A World Heritage Site located on the Adriatic Sea. The walls of Dubrovnik run over 1 mile around the city and are 13-20 feet thick in places. http://www.visitdubrovnik.hr/index.php/en/
MSC Musica departs Venice Italy for the Greek Islands and Dubrovnik then returns to Venice.
https://www.msccruises.com/en-gl/Cruise-Ships/MSC-Musica.aspx