Wavrans-sur-l'Aa
Wavrans-sur-l’Aa () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography. Wavrans-sur-l'Aa is located southwest of Saint-Omer, at the D192 and D225 road junction, on the banks of the river Aa. It is home to a site of great ecological interest, which justified the creation of a voluntary nature reserve, which become the Grottes et Pelouses d'Acquin-Westbecourt et Coteaux de Wavrans-sur-l'Aa National Nature Reserve in 2008