Naturally, it would be remiss to embark on a Dubrovnik yacht charter without paying homage to what has made the city so recognisable around the world: its formidable walls. Spanning approximately 1,940 metres and reaching a maximum height of 25 metres, the bulk of the walls were constructed during the 14th and 15th centuries, but were continually extended until the 17th century. Allow yourself an hour to make the full circuit, and make sure you take time to stop and take in the panromas of the city, backed by breathtaking views of the Adriatic Sea.