Bundala National Park
The area was declared a wildlife sanctuary on 5 December 1969, and was upgraded to a national park on 4 January 1993 with land area of 6,216 hectares (24.00 sq mi). However the park was regazetted in 2004 and the original park was reduced to 3,698 hectares (14.28 sq mi). In 1991, Bundala became the first site in Sri Lanka to be designated a Ramsar wetland. In 2005, Bundala was declared a Man and Biosphere Reserve by UNESCO. In January 2006, an area adjacent to Bundala covering an area of 3,339.38 hectares (12.8934 sq mi) was declared as the Wilmanna Sanctuary.
The area mainly underlain with hornblende-biotite gneiss of the eastern Vijayan series. The low country dry zone climate prevails in the area. The area have an average relative humidity of 80%. The national park contains five shallow, brackish lagoons with salt pans in three. They are Bundala lagoon of 520 hectares (2.0 sq mi), Embilikala lagoon of 430 hectares (1.7 sq mi), Malala lagoon of 650 hectares (2.5 sq mi), Koholankala lagoon of 390 hectares (1.5 sq mi), and Mahalewaya of 260 hectares (1.0 sq mi). The Koholankala and Mahalewaya are almost totally developed for salt production. The climatic conditions are tropical monsoonal, with a mean annual temperature of 27 °C (81 °F). Annual rainfall ranges from 900–1,300 millimetres (35–51 in), with dry period persists from May to September.The elevation of the park ranges from sea level to 10 metres (33 ft). The park was affected by 2004 Indian Ocean tsunami. Due to protection from sand dunes the park received very little damage.