The hortillonnages are a network of about 300 hectares of market gardens created in the marshes of the Somme east of Amiens, threaded through by 65 kilometres of channels and accessible only by flat-bottomed boat. They are one of the most remarkable living agricultural landscapes in France — a medieval system of cultivation maintained on plots that have been continuously farmed since at least the twelfth century.
Guided boat tours of the hortillonnages leave from the Maison des Hortillonnages on Boulevard Beauvillé from April to October. The trip lasts about 45 minutes and takes you through channels narrow enough to touch both banks, past plots of vegetables, flowers, and fruit, past tiny wooden sheds and footbridges, past herons and kingfishers. It is an unexpectedly intimate experience. The hortillonnages are also explorable on foot along some of the paths that border the channels — a pleasant way to spend an afternoon.