The project was carried out over an area of approximately 80 km² across the Karakuyu, Çileme, Pancar and Palamut Tekeli regions within the Menderes and Torbalı districts of İzmir. The primary objectives included the protection of seven natural sinkholes in the Menderes region, regulating inflow without disturbing their natural morphology and determining their hydraulic and hydrogeological characteristics. Engineering structures were designed to enable the storage of surface water from sinkhole lakes in the subsurface.
Within the hydrogeological study, the surface and groundwater drainage basins associated with the sinkholes were examined in detail, including the assessment of hydrogeological conditions and water quality. Protection zones were delineated and intake structures were designed. Through the planned engineering works, the project aims to ensure the continuous functioning of the sinkholes and store approximately 18 hm³ of surface water entirely underground.
Formed over millions of years and commonly known as “water swallowers,” these natural sinkholes have been incorporated into a proposed geopark and ecotourism concept without damaging their natural structure. The planned geopark is expected to become an attractive destination—especially during rainy seasons—for students and İzmir residents, contributing positively to the local economy.
