The Cave of Alistrati is one of northern Greece's most accessible cave systems, with broad chambers, elaborate stalactites, and a guided route that does not require special gear. It lies inland from Kavala, so the trip changes the mood from Aegean port town to limestone hills and villages.
It is a good day-trip choice in hot weather or when you want a natural sight that is not another beach or archaeological ruin. Check opening times before leaving Kavala, as the cave rewards a planned visit more than a spontaneous detour.