Located along one of Montenegro's most beautiful bays is Kotor, a city of traders and famous sailors, with many stories to tell. The Old City of Kotor is a well preserved urbanization typical of the Middle Ages, built between the 12th and 14th century. Medieval architecture and numerous monuments of cultural heritage have made Kotor a UNESCO listed "World Natural and Historical Heritage Site". The bay, sometimes called Europe's southernmost fjord, is in fact a submerged river canyon of the disintegrated Bokelj River which used to run from the high mountain plateaus of Mount Orjen. It is an important tourist attraction in Montenegro. This bay lends itself well to water sports.
Dubrovnik and Lokrum (the small island opposite) are mentioned in the legend of King Richard the Lionheart, who found shelter against the storm on Lokrum on his return from the Crusades in 1192. He made a promise to build a church on the spot where he came ashore, but at the request of the people of Dubrovnik, he arranged to have the church built in the city of Dubrovnik. The city of Dubrovnik is surrounded by 2 kilometres of walls build between the 11th and 17th century. A visit to the city walls is well worth it. Other highlights are the famous main street, Stradun, the Dominican Monastery with its fine collection of Renaissance paintings, and the 15th Century Rector's Palace.
With a wealth of underwater sea life, sandy shoreline, and lush vegetation, Mljet is considered to be one of the most beautiful Croatian islands and is famous for its white and red wine, olives, and goat cheese. Two natural salt lakes - Veliko and Malo Jezero are located at the north end of the island are favorite swimming spots for locals and visitors alike. Located on a small island in the middle of Veliko Jezero lake, lies the isle of St. Mary, an old Benedictine monastery and church from the 12th century.