Air-sur-la-Lys has its origins in the Medieval. The locality is first mentioned in the 9th century. It develops around the Lys, an important river that has played a key role in the history of the region. Nowadays, Air-sur-la-Lys is a peaceful town that has preserved its historical heritage while adapting to the needs of modern life. It offers a charming setting and is a sought-after place of residence for many inhabitants.
In Calais, there are buildings dating from the 16th century to the 12th century. The city was previously the prey of conflicts between France and England, and so today there are various forts such as Fort Nieulay, Risban, and the citadel that have lasted until today. We also find the Notre-Dame Church, built in 1163, which was renovated in 2016 and finally the Watchtower damaged during the Second World War and repaired in 2022.