The Owinka Lake Resort is located in the Low-Country Wet Zone and is subject to a tropical monsoon climate. The annual rain fall in this area is recorded at approximately 2,569.3 millimeters per year with temperatures varying from 25 degrees Centigrade to 30 degrees Centigrade. The Mean relative humidity for the day is approximately 72% while mean night-time humidity is approximately 87%.
About Bolgoda Lake
Filled with history and legend, the Bolgoda Lake is the largest natural freshwater lake in the country. The lake comprises two vast Lakes, namely, the Bolgoda North Lake and the Bolgoda South Lake. The Lake system belongs to the Colombo and Kalutara districts and opens into the sea via the Panadura estuary, which is situated in the southwest coast of Sri Lanka. The area of the Bolgoda Lake is approximately 400 square kilometers.
Located in the Western Province of Sri Lanka, the Bolgoda lake system is situated in the Low-Country Wet Zone of the Island. Longitudes are in the range of E 790 55'-790 58' and latitudes are in the range of N 60 40-60 48'.
Historically, this Lake was utilized extensively, in the 17th and 18th Century, to transport people, goods and timber from the Up-Country Region of Sri Lanka during the Dutch Period. During the British rule of the Island, Bolgoda Lake was a place of recreation for British officers and a renowned hunting ground for birds.
Flora and Fauna
The Bolgoda Lake boasts an amazing ecosystem that is rich in diversity. It is home to different varieties of terrestrial, aquatic and semi-aquatic plants including annuals, biannual and perennials. While famous for its verdant mangroves, the Lake also features different varieties of grass and trees.
Based on the Initial Environmental Examinations carried out in 2007, a total of 101 plant species belonging to 51 families have been recorded within the Owinka Lake Resort area. Of these species, seven have been identified as endemic, while one nationally endangered, and three globally endangered species, have been recorded.
Eighty-two fauna species have been recorded within the Resort area. The recorded species include ten species of butterflies, three species of amphibians, nine species of reptiles, forty-seven bird species and eleven species of mammals. Interestingly, a single species of birds and two species of mammals are endemic to the country.
It is important to note that one-third of Sri Lanka's fauna can be found in and around Bolgoda Lake. This is approximately one-tenth of the total number of endemics recorded for the country. Approximately one-third of identified species of the Sri Lankan amphibians can be found in Bolgoda Lake. The high number of migrant and aquatic birds also enhances the fauna. Therefore, Owinka Lake Resort is a haven for naturalists and nature-enthusiasts.
Avid fishermen have been visiting Bolgoda Lake for centuries. The Lake is home to multiple varieties of fish. There is no restriction for fishing at the Bolgoda Lake. While the preferred method of fishing is angling, many continue to use the traditional fishing technique of 'Ja-Kotuwa' for fishing as well. 'Ja kotuwa' utilizes bamboo dividers which are hoisted in the middle of the lake and forms a trap for fish. Night-time fishing is aided by the illumination of kerosene lamps.