Antalieptė Reservoir, Reservoir in Zarasai district, Lithuania

Antalieptė Reservoir is a large body of water in the Zarasai district of Lithuania, stretching approximately 16 kilometers in length. It covers about 1900 hectares and contains over 50 islands of varying sizes, from small rocky outcrops to larger wooded landmasses, with winding shorelines that create numerous coves and peninsular formations.

The reservoir was created in 1959 when the Šventoji River was dammed to generate electricity and manage water flow. The flooding transformed the landscape, submerging lakes, fields, and old paths that people had previously used.

Fishing is permitted with special permits that can be obtained in advance online or at local shops, while sailing and small motorboats are allowed with environmental guidelines in place. The winding shores and multiple coves offer different areas to explore on foot, making it suitable for walking, picnicking, and bird watching.

Around 138 bird species have been recorded on or near the reservoir, including swans, gulls, and herons that nest on the islands or rest on the water. This makes it a haven for bird watchers and demonstrates how the artificial water body became a vital habitat for water birds.