La Nuit des Coteaux is a free event that takes place every year in June. The event features stunning light installations and performances in the hills of Liege, creating a magical atmosphere that is not to be missed. The event has a relatively short history, dating back to 2015, but has since become a beloved event in Liege. Notable features of the event include its stunning views of the city, its unique blend of art and nature, and its family-friendly atmosphere. La Nuit des Coteaux is a great choice for anyone looking to experience the beauty of Liege at night.