Kaudulla Reservoir is a large water body located in Sri Lanka, primarily built for irrigation purposes. It was constructed in the 3rd century AD and is part of the ancient irrigation system that supports agriculture in the region. The reservoir is surrounded by lush greenery and is an important source of water for nearby farms. The reservoir is also known for its rich biodiversity, attracting various species of birds and wildlife. It is a popular spot for nature enthusiasts and photographers, especially during the dry season when elephants gather around the water. Kaudulla National Park, adjacent to the reservoir, further enhances its ecological significance.