The lake is located at the southeast of Marmara Region and is within the provincial borders of Bursa. It is the 5<sup>th</sup> largest lake of Turkey and the largest of the Marmara Region. Iznik Lake is Turkey’s most important wetland area. In terms of being beneficial, it is one of the most important sources of fresh water in the country. It has important benefits on issues such as fishing, irrigation water and daily utilization. The lake’s deepest point is 84 meters deep. With a 12.2 billion cubic meters of water, its annual water yield is 80 million cubic meters.
The lake is completely surrounded by agricultural fields (cultivated area) and olive groves. Iznik Lake has gained importance with the phygmy cormorants and night herons that have formed mixed colonies between the reeds there. The reason is not known but Iznik Lake is not able to harbor large numbers of waterfowls (water birds) during winter months. Nevertheless, it can be said that it is an important refuge for the birds when the Central Anatolian lakes are frozen.
The works of Iznik Lake Management Plan has been initiated by our Ministry and until the Management Plan works are completed, the activities and the conservation works that have been planned to take place in the area in question are being processed within framework of the Protection of Wetlands Regulations.