Yala National Park Distance from Colombo 309 km Yala is approximately 1,259 sq.km in extent and is located in the south eastern corner of the island. Its northern boundaries border the Lahugala Elephant Sanctuary and it has the added bonus of scenic ocean frontage. The terrain is a varied course of flat plains altering with rocky outcrops. The vegetation ranges from open parklands to dense jungle. Water holes, small lakes, lagoons and streams provide water for the animals and birds. The specialty here is the large numbers of elephants.     Uda Walawe National Park Distance from Colombo 170 km The Uda Walawe National Park is approximately 30,821 hectares in extent. This park lies within the Ratnapura and Monaragala Districts and acts as the catchment to the Uda Walawe Reservoir, and is located in the dry zone. It comprises grasslands, thorn scrubs, and many valuable species of trees.     Horton Plains Distance from Colombo 200 km Horton Plains National Park is the only national park situated in the hill country. It falls within the Nuwara Eliya District. The panoramic beauty of the hill county is witnessed within the park. Endemic Loris and purple monkeys are among the animal species that can be seen.   Bundala National Park Distance from Colombo 260 km Bundala National Park is the latest addition to Sri Lanka's national parks. All species of water birds residents of the country and migrant birds inhabit this Park.     Gal Oya National Park Distance from Colombo 314 km Situated at Inginiyagala, the Gal Oya National Park is most renowned for its elephant population.   Wasgamuwa National Park Distance from Colombo 200 km The Wasgamuwa National Park lies within the Polonnaruwa and Matale Districts. It has the Mahaweli and Amban Rivers at its eastern and western borders. Its environment is predominated by tropical evergreen forest.