If you haven’t visited Dubrovnik (lat. Ragusium) yet, you will probably do so now. Dubrovnik is 30 km from Slano and it is the administrative seat of the Dubrovnik-Neretva County. Dubrovnik is a beautiful city, rich in history and cultural heritage. Almost every corner of the city is important culturally and historically. The city of Dubrovnik has been a UNESCO World Heritage Site since 1979.
Marine trade has always been the cornerstone of the city’s progress. During the Middle Ages, Dubrovnik, as the Republic of Dubrovnik, was the only Eastern Adriatic city-state able to compete with the Republic of Venice. The city was highly developed in the course of the 15th and 16th centuries. It was an important centre for the development of the Croatian language and literature. Many great Croatian people worked in it, such as poets (Marin Držić, Ivan Gundulić), playwrights, painters, mathematicians, physicists (Ruđer Bošković, 1711–1787) and other scholars. Architecturally, it is with good reason that Dubrovnik is called a jewel of medieval and Renaissance architecture on the Adriatic. It is difficult to list in one place all important cultural and historical buildings this city is full of. If you do not have too much time to see the city, a walk along the walls will be enough too.  Well-preserved city walls (1940 m), bordering the old city, are walkable in their full length. They were built from the 13th to the 17th century, they are up to 25 m in height, and their landward and seaward widths are 4–6 m and 1–3 m respectively. The tour of the walls gives you a view of the city from a quite unusual perspective. Four fortresses (Minčeta, Bokar, Revelin and St. John) are an integral part of the walls. Lovrijenac is a fortress outside the walls, on the western side, while the fortress of Imperijal is located on Srđ. Apart from the cathedral of Dubrovnik, St. Blaise’s church, the Franciscan and the Dominican monasteries (which house museums), there is a number of other small churches, as well as palaces and summer houses that can be visited. Within the Franciscan monastery there is a still-active pharmacy founded in 1317. It is one of the oldest pharmacies still in business. You can also visit the Ethnographic Museum, the Aquarium, the Maritime Museum, and the synagogue museum. 
If you have more time, please do not limit your stay in Dubrovnik to the old town. You can take a boat to Lokrum, an islet across from the old town, have a swim there and enjoy the arboretum which is a monument of nature and landscape architecture. Take a walk along the street “Između vrta” (“between the garden”) from Pile to Boninovo and visit the cemetery there. Go further towards Gruž harbour and Lapad – there is Sorkočević summer house – and have a swim in the beautiful Lapad bay...
You can also go to Srđ, either by car or by cable car. The view of the city, the sea and the islands is magnificent. The cable car covers the 778 m distance in four minutes. 
In summer (10th July – 25th August), Dubrovnik hosts Dubrovačke ljetne igre (Dubrovnik summer games), a festival founded in 1949. During this event, theatre plays and music and dance shows are held both indoors and outdoors.