Covering an area of 1,562 hectares, Acarlar Lake is reputed as one of the important tourism centres of Sakarya. Acarlar Lake Floodplain Forest is a first degree natural protected area. Acarlar Floodplain, located in the protection zone, dries up in the summer and is replenished in the winter. The surface area of the floodplain is 1,562 hectares and its depth is up to 1.5 meters. The lands of the floodplain, which dries out in the summer, are used as agricultural land by the villagers. The area of the floodplain is completely surrounded by ash forests, and these trees are occasionally grew into the swampy parts of the lake.