Villes Soeurs - Gamaches Nautique ive Cam

Geographical Context and Hydrological Features

Nestled along the meandering course of the Bresle River, the commune of Gamaches stands as one of the famed “Villes Sœurs” of the Somme and Seine-Maritime border region. The nautical base—commonly referred to as Gamaches Nautique—benefits from a serene bend in the river, where fluvial dynamics have created deep pools and gentle rapids ideal for water sports. The river’s catchment area spans nearly 1,100 km², with upstream woodland and agricultural runoff feeding into clear, oxygen-rich waters. Hydrologists note that the Bresle here exhibits a mesotrophic status, supporting diverse aquatic fauna such as brown trout (Salmo trutta), European eel (Anguilla anguilla), and a variety of freshwater mussels.