The intense turquoise color of the water is caused by the presence of kaolinite clay particles reflecting light.
The area is recognized as a Natura 2000 site due to the presence of rare dragonfly species like the Southern Damselfly.
The quarries were once a primary source of high-quality kaolin clay used extensively in the production of fine ceramics and paper coating.
The site is a post-industrial reclamation project where human excavation has unintentionally created a complex wetland ecosystem.
The clay beds date back to the Lower Cretaceous period, deposited roughly 100 million years ago.
The Sentier de découverte des Carrières d'argile in Guizengeard is a marked nature trail winding through former open-cast clay mining pits that have transformed into colorful, lake-filled landscapes. The site features vibrant, turquoise-tinted water contrasting against stark white clay cliffs, a result of the unique mineral composition of the soil. The trail is approximately 2.5 kilometers long and offers an elevated view of the artificial lakes created by decades of industrial extraction. The surrounding landscape includes a mosaic of forest, heathland, and ponds within the Natura 2000 protected area of the Guizengeard quarries. It provides a unique geological window into the extraction history of the Charente region.
The designated belvedere overlook, which offers a panoramic view of the turquoise lakes against the surrounding white cliffs.
Bring binoculars for birdwatching, as the reclaimed lakes attract a variety of aquatic birds.
Stay strictly on the marked path, as the clay banks can be unstable and the soil highly erosive.
Apply insect repellent during the summer months, as the wetland environment supports significant mosquito populations.
Attempting to hike off-trail or venturing near the steep edges of the pits for close-up photography, as the ground is prone to landslides.
Hiking boots or sturdy walking shoes are mandatory due to potentially muddy or slippery clay sections; swimming is strictly prohibited.
