Last summer I stayed in the Ardennes for holidays. I will never go out without a camera, and even now it was worth it. I discovered the beauty of the woodlands, often in fog; my favorite conditions for photography. Much of the Ardennes is covered in dense forests, with the mountains averaging around 350–400 m (1,150–1,310 ft) in height but rising to over 694 m (2,277 ft) in the boggy moors of the Hautes Fagnes region of south-eastern Belgium. The region is typified by steep-sided valleys carved by swift-flowing rivers, the most prominent of which is the Meuse. Its most populous cities are Verviers in Belgium and Charleville-Mezieres in France, both exceeding 50,000 inhabitants. The Ardennes is otherwise relatively sparsely populated, with few of the cities exceeding 10,000 inhabitants.