Acarlar Marsh
Acarlar Floodplain Forest – Sakarya, Türkiye
Acarlar Floodplain Forest (Acarlar Longozu) is one of the most important wetland and floodplain forest ecosystems in Sakarya Province, Türkiye. Located between the districts of Karasu and Kaynarca, the area is known for its rich biodiversity, freshwater wetlands, dense forests and scenic natural landscapes.
Acarlar Floodplain Forest is one of Türkiye's notable floodplain forests, where seasonal and permanent water resources interact with forest ecosystems. Its combination of wetlands, waterways, trees and diverse plant species makes it an important destination for nature tourism and outdoor recreation.
Natural Features
Acarlar Floodplain Forest consists of a large wetland surrounded by forested areas. During periods of increased water levels, parts of the floodplain become covered with water, creating a distinctive wetland landscape.
The area contains a variety of aquatic and terrestrial plant species. Trees such as ash, alder, willow and oak can be found in the surrounding forest environment, while aquatic vegetation grows around the wetland areas.
The combination of water, forest and vegetation creates a unique landscape that changes throughout the seasons.
Biodiversity
Acarlar Floodplain Forest is an important habitat for numerous species of birds, fish, amphibians, reptiles and mammals.
The wetland environment provides suitable conditions for migratory and resident bird species, making the area particularly interesting for birdwatching and nature observation.
The rich plant diversity and wetland ecosystem also contribute to the ecological importance of the region.
Acarlar Lake
At the center of the floodplain forest is Acarlar Lake, a shallow freshwater lake surrounded by forest and wetland vegetation.
The lake and its surrounding ecosystem form an important part of the area's natural character. Water channels and wetland habitats provide opportunities for visitors to observe aquatic life and enjoy peaceful natural surroundings.
Nature Tourism and Recreation
Acarlar Floodplain Forest is an attractive destination for visitors interested in nature tourism, photography and outdoor recreation.
Depending on seasonal and local conditions, visitors can enjoy:
- Nature walks
- Wildlife observation
- Birdwatching
- Photography
- Canoeing and boating in designated areas
- Exploring wetland habitats
- Picnicking
- Relaxing in natural surroundings
Wooden walkways and visitor facilities in certain parts of the area allow visitors to experience the wetland environment while minimizing disturbance to the natural habitat.
Ecological Importance
Floodplain forests are among the most valuable wetland ecosystems because they support high levels of biodiversity and play an important role in water regulation.
Acarlar Floodplain Forest contributes to the ecological balance of the region by providing habitats for wildlife and maintaining a connection between aquatic and forest ecosystems.
Its natural characteristics have also made the area an important location for environmental education and nature-based tourism.
Acarlar Longozu and Sakarya Tourism
Acarlar Floodplain Forest is one of the prominent natural attractions of Sakarya Province and can be included in regional travel itineraries together with the Black Sea coastline, forests, lakes and other natural destinations.
Its proximity to Karasu makes it a convenient stop for travelers exploring the northern part of Sakarya. The combination of wetlands and dense forest provides a different experience from traditional coastal tourism.
Best Time to Visit
Acarlar Floodplain Forest can be visited during different seasons, with spring and autumn offering particularly attractive landscapes for photography and nature walks.
Water levels and accessibility can vary according to rainfall and seasonal conditions. Visitors are advised to follow local regulations and environmental protection guidelines during their visit.
Visitor Information
Location: Karasu–Kaynarca, Sakarya, Türkiye
Region: Western Black Sea / Marmara transition zone
Type: Floodplain forest and wetland ecosystem
Main Feature: Acarlar Lake
Highlights: Wetlands, forests, biodiversity, birdwatching, nature walks, photography and scenic landscapes






















































