Val-d'Oise is a department located in the Île-de-France region of northern France. It was created in 1968 and is named after the Oise River, which flows through the area. The capital city is Pontoise, and the department is known for its mix of urban and rural landscapes, including parks and historical sites. The department is well-connected to Paris, making it a popular choice for commuters. It features several towns and cities, such as Argenteuil and Cesson, each offering unique cultural and recreational opportunities. Val-d'Oise is also home to various natural reserves and historical landmarks, attracting visitors year-round.