The Dender originates at the confluence of the Eastern Dender and the Western or Little Dender near Ath, a medieval fortified town where the charms of the past have been remarkably well preserved. On the architectural front, the imposing Burbant tower stands out, while the folklore of yesteryear lives on in the annual Ducasse, an exuberant folk festival centred around the giant Goliath and his wife, the horse Bayard and the four other city giants. The region around Ath owes its nickname 'Le pays vert' – the green country – to its rural character, with picturesque villages, centuries-old farms and lonely windmills in the rolling countryside of Wallonie Picarde, the Walloon sister region of the Flemish Ardennes.