The lac d'Orient is home to a rich flora (common Pulicaria, grass leaf Alisma, aquatic limoselle, etc.) that benefits from variations in water levels. An avifauna of common cranes or black stork also thrives around the lake, feeding, and resting during migration. Its many wetlands constitute the natural habitat of various amphibians. The whole area is classified as a Natural zone of ecological interest, fauna, and flora. It is recognized for its ecological interest, including species and natural environments, often rare or threatened.