Often compared to the Great Wall of China (excess is accepted), the walls of Ston are impressive for their length, the longest in Europe.
Around the city, the beauty of the Peljesac peninsula.
Highlights in Ston:
Climbing the walls is mandatory (for those who are physically fit for a bit of effort), and from there you can spread out the view over the salt flats. If the visit coincides with a meal, oysters are the local specialty.