The national park covers an area of 3,155 ha and is located at İğneada town on the Turkish-Bulgarian border at 25 km far from Demirköy district of Kırklareli Province.

Streams running down from the Strandzha mountain range towards Black Sea formed alluvium on the shore, where floodplain occurred due to seasonal floodings.

The protected area is administered by the Directorate-General of Nature Protection and National Parks of the Ministry of Environment and Forest.

The national park is a rare ecosystem, which consists of marsh, swamp, lakes and coastal sand dunes. The Strandzha mountain range is situated in the south and west.

There are five lakes with aquatic plant. Lake Erikli covering 43 ha is a lagoon, which gets separated from the sea in the summer months as a result of drought. Lake Mert of 266 ha area is formed by Çavuşdere creek at its mouth.

Lake Saka is a small lake of 5 ha situated in the south of the national park between the floodplain and the dunes. The two other lakes are Lake Hamam of size 19 ha and Lake Pedina of 10 ha.

The sand dunes are situated on both sides of İğneada town. The dunes in the north stretch out from east of Lake Erikli to İğneada. The southern dunes run from the Lake Mert’s sea connection to the south of Lake Saka, reaching a width of 50–60 m at some places.

It’s a popular weekend camping and hiking spot, and visitors can hire kayaks to explore Mert Lake, as well as arrange fishing boat trips here.

The park’s base is the small town of Iğneada, with its Black Sea beach shoreline and Mert Lake at its southern edge.

Farther south in the park, Hamam Lake is one of the easiest accessible spots, as it’s only a short walk from a park entrance.

Access
İğneada Floodplain Forests National Park can be reached by public transportation from Istanbul via Silivri, Çorlu, Lüleburgaz, Pınarhisar, Demirköy and İğneada. It is convenient to go from Istanbul over the motorway O-3 via Saray, Vize and then Poyralı, Demirköy and İğneada by car.