Sasthamcotta Lake, Freshwater lake in Kollam District, Kerala, India
Sasthamcotta Lake is a large freshwater body in Kollam District surrounded by rolling hills on most sides. Its southern boundary is marked by a constructed earthen embankment that contains the water.
The lake received Ramsar designation in 2002, acknowledging its international importance as a wetland habitat. This recognition reflected growing efforts to protect its ecosystems and wildlife populations.
Fishing communities use traditional methods in the waters, preserving practices passed down through generations. You can watch locals working from boats during early morning hours.
The lake is accessible for visitors who want to explore by foot or boat around its perimeter. Early morning visits offer the best experience when wildlife is most active and temperatures are cooler.
Tiny aquatic larvae called cavaborus live in the lake and naturally purify the water by consuming harmful bacteria. This biological filtration system works constantly without needing external intervention.
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