This will help to explore Sri Lankan famous activities…
The unique feature of this park is the existence of "Willus" (Natural lakes) - Natural, sand-rimmed water basins or depressions that fill with rainwater. Located in the Northwest coast lowland dry zone of Sri Lanka. Wilpattu is the largest and one of the oldest National Parks in Sri Lanka. Wilpattu is among the top national parks world-renowned for its leopard (Panthera pardus kotiya) population.
https://en.wikipedia.org/wiki/Wilpattu_National_Park
Yala National Park is the most visited and second largest national park in Sri Lanka, bordering the Indian Ocean. The park consists of five blocks, two of which are now open to the public, and also adjoining parks. It is situated in the southeast region of the country, The park is best known for its variety of wild animals. It is important for the conservation of Sri Lankan elephants, Sri Lankan leopards and aquatic birds.There are six national parks and three wildlife sanctuaries in the vicinity of Yala.
https://en.wikipedia.org/wiki/Yala_National_Park
The area was designated as a national park on 12 August 1997, having been originally declared as a wildlife sanctuary in 1938.[1] The reason for declaring the area as protected is to protect the catchment of Minneriya tank and the wildlife of the surrounding area. The tank is of historical importance, having been built by King Mahasen in third century AD. The park is a dry season feeding ground for the elephant population dwelling in forests of Matale, Polonnaruwa, and Trincomalee districts.
https://en.wikipedia.org/wiki/Minneriya_National_Park
Horton Plains National Park is a protected area in the central highlands of Sri Lanka and is covered by montane grassland and cloud forest. The Horton Plains are the headwaters of three major Sri Lankan rivers, the Mahaweli, Kelani, and Walawe. In Sinhala the plains are known as Maha Eliya Plains Stone tools dating back to Balangoda culture have been found here. The plains' vegetation is grasslands interspersed with montane forest and includes many endemic woody plants. Large herds of Sri Lankan sambar deer feature as typical mammals and the park is also an Important Bird Area with many species not only endemic to Sri Lanka but restricted to the Horton Plains. Forest dieback is one of the major threats to the park and some studies suggest that it is caused by a natural phenomenon.The sheer precipice of World's End and Baker's Falls are among the tourist attractions of the park.
https://en.wikipedia.org/wiki/Horton_Plains_National_Park
Sinharaja Forest Reserve is a forest reserve and a biodiversity hotspot in Sri Lanka. Sinharaja is the country's last viable area of primary tropical rainforest. More than 60% of the trees are endemic and many of them are considered rare.The hilly virgin rainforest, part of the Sri Lanka lowland rain forests ecoregion, was saved from the worst of commercial logging by its inaccessibility,and was designated a World Biosphere Reserve in 1978 and a World Heritage Site in 1988. The reserve's name translates as Lion Kingdom.
https://en.wikipedia.org/wiki/Sinharaja_Forest_Reserve
Pigeon Island National Park is one of the two marine national parks of Sri Lanka. The national park is situated 1 km off the coast of Nilaveli, a coastal town in Eastern Province. The island's name derives from the rock pigeon which has colonized it. The national park contains some of the best remaining coral reefs of Sri Lanka. This national park is the 17th in Sri Lanka. The island was used as a shooting range during the colonial era .Pigeon Island is one of the several protected areas affected by the Indian Ocean tsunami in 2004
https://en.wikipedia.org/wiki/Pigeon_Island_National_Park
Gal Oya National Park in Sri Lanka was established in 1954 and serves as the main catchment area for Senanayake Samudraya, the largest reservoir in Sri Lanka. Senanayake Samudraya was built under the Gal Oya development project by damming the Gal Oya at Inginiyagala in 1950. An important feature of the Gal Oya National Park is its elephant herd that can be seen throughout the year. Three important herbs of the Ayurveda medicine, triphala: Terminalia chebula, Terminalia bellirica and Emblica officinalis are amongst the notable flora of the forest.
https://en.wikipedia.org/wiki/Gal_Oya_National_Park
Udawalawe National Park lies on the boundary of Sabaragamuwa and Uva Provinces, in Sri Lanka. The national park was created to provide a sanctuary for wild animals displaced by the construction of the Udawalawe Reservoir on the Walawe River, as well as to protect the catchment of the reservoir. The farmers were gradually removed once the national park was declared. Udawalawe is an important habitat for water birds and Sri Lankan elephants. It is a popular tourist destination and the third most visited park in the country.
https://en.wikipedia.org/wiki/Udawalawe_National_Park
Kumana National Park in Sri Lanka is renowned for its avifauna, particularly its large flocks of migratory waterfowl and wading birds.
https://en.wikipedia.org/wiki/Kumana_National_Park
Bundala National Park is an internationally important wintering ground for migratory water birds in Sri Lanka.
https://en.wikipedia.org/wiki/Bundala_National_Park