Overlooking the city of Dubrovnik, Mount Srd is just over 400 meters (1300 feet) tall but provides an unrivaled view of both the city and stunning coastline below. Depending on how adventurous you're feeling, the best way to reach the top is either via the winding footpath from Jadranska Cesta to the summit (strenuous but well worth the effort) or the conveniently accessible cable car that runs about once every 30 minutes. Once there, enjoy the panoramic view of the walled city and the sparkling ocean, and take the opportunity to view what remains of the old fort that once held off Serbian forces in the 1990's. After all, it never hurts to add some historical and cultural perspective to such an incredible vista.
Note:Bus 17 from Pile Gate does traverse the hill daily, although it makes a number of stops on the way; if you do take the bus, make sure to leave your day pretty open.