- Unique Spillway Design: The lake is most famous for its uniquely shaped, zig-zag, or “piano key” spillway, constructed in the 1980s as part of the Mahaweli Development Project. When the reservoir is full, the water cascades over this structure, creating a stunning and photogenic series of small waterfalls.
- Harmony of Ancient and Modern Engineering: Pimburaththewa Lake is an example of a “wewa” or ancient reservoir that has been revitalized and adapted for modern use. While its history dates back to ancient kings, it was modernized in the 20th century, allowing its original principles to continue serving local agriculture and the ecosystem.
- Ecosystem and Wildlife: The lake is a place where nature thrives, with a rich ecosystem that attracts a variety of birds, fish, and mammals. It is particularly known for elephants, which often come to the lake’s edge, especially in the evening, to drink and cool off.
- Connection to Local Culture: For the local community, the lake is more than just a water source; it’s a foundation of their culture and identity. It is a source of livelihood, a place of worship, and a testament to the wisdom of their ancestors.
- Tranquil and Unspoiled Environment: Located in a less-traveled area, the lake offers a serene and uncrowded experience. It’s a peaceful spot for visitors to relax, watch the sunset, and enjoy the beautiful scenery without the hustle and bustle of more popular tourist destinations..