We went for a walk on Friday around Kalimegdan. Our walk actually started at Akademski Park (adjacent to Studentski Trg), which is a pleasant area of greenery in the heart of the Stari Grad. Kalimegdan itself has lots of greenery, great promenades and views, walls and gates from different periods, several restaurants, sporting facilities, a museum of artillery pieces, at least two Churches - as well as centuries of history! We had a coffee/beer at the restaurant overlooking the point where the Sava meets the Danube. Yes, prices are a little higher than elsewhere, but it's worth it!