Udawalawe National Park lies on the limit of Sabaragamuwa and Uva Provinces, in Sri Lanka. The public park was made to give asylum to wild creatures uprooted by the development of the Udawalawe Reservoir on the Walawe River, just as to secure the catchment of the supply. The hold covers 30,821 hectares (119.00 sq mi) of the land region and was set up on 30 June 1972.[1] Before the assignment of the public park, the region was utilized for moving development (chena cultivating). The ranchers were progressively eliminated once the public park was proclaimed. The recreation center is 165 kilometers (103 mi) from Colombo. Udawalawe is a significant living space for water birds and Sri Lankan elephants. It is a mainstream vacationer location and the third most visited park in the country. Udawalawe lies on the limit of Sri Lanka's wet and dry zones. Fields rule the geology, however, there are likewise some rugged areas.[1] The Kalthota Range and Diyawini Falls area in the north of the recreation center and the outcrops of Bambaragala and Reminikotha exist in it. The recreation center has a yearly precipitation of 1,500 millimeters (59 in),[2] the greater part of which falls during the long periods of October to January and March to May. The normal yearly temperature is around 27–28 °C (81–82 °F), while relative dampness shifts from 70% to 83%. All around depleted ruddy earthy colored soil is the dominating soil type, with ineffectively depleted low humic dim soils found in the valley bottoms. Essentially alluvial soils structure the beds of watercourses. 

The territory encompassing at the repository incorporates bogs, the Walawe waterway, and its feeders, woods, and grasslands.[2] Dead trees remaining in the supply are visual tokens of the degree of woodland cover before the development of the Udawalawe Dam. Green growth, including Pediastrum and Scenedesmus spp., and blue-green growth species like Microsystis, happen in the repository. Spaces of open prairie are bountiful because of previous chena cultivating practices.[1] There is a ranch of teak past the southern limit, beneath the dam, which was planted before the affirmation of the recreation center. Species recorded from the recreation center incorporate 94 plants,[2] 21 fish, 12 creatures of land and water, 33 reptiles, 184 birds (33 of which are transitory), and 43 vertebrates. Moreover, 135 types of butterflies are among the spineless creatures found in Udawalawe. 

Udawalawe is a significant territory for Sri Lankan elephants, which are moderately difficult to find in its open natural surroundings. Numerous elephants are drawn to the recreation center as a result of the Udawalawe reservoir,[2] with a crowd of around 250 accepted to be forever resident.[1] The Udawalawe Elephant Transit Home was set up in 1995 to take care of deserted elephant calves inside the park.[3] An aggregate of nine calves, on two events in 1998 and 2000, with another eight calves in 2002, was delivered in the recreation center when mature enough to fight for themselves.[3] 

The corroded spotted feline, fishing feline, and Sri Lankan panther are individuals from the family Felidae present in Udawalawe. The Sri Lankan sloth bear is only occasionally seen due to its extraordinariness. Sri Lankan sambar deer, Sri Lankan hub deer, Indian muntjac, Sri Lankan spotted chevrotain, wild pig and water bison are among other warm-blooded creature species. Brilliant jackal, Asian palm civet, hat macaque, tufted dark langur, and Indian rabbit likewise possess the recreation center. An investigation directed in 1989 tracked down that extensive quantities of brilliant palm civets possess the woodlands of Udawalawe.[1] Five types of mice additionally have been recorded from the recreation center. The endemic Ceylon sharp mouse, known from Yala National Park, was recorded in Udawalawe in 1989. Indian shrubbery rodents and three types of mongoose are additionally recorded in the public park. 

Udawalawe is additionally a decent birdwatching site.[1] Endemics, for example, Sri Lanka spurfowl, embarrassed malkoha, Sri Lanka dark hornbill, earthy colored covered windbag, and Sri Lanka junglefowl are among the reproducing occupant birds. White wagtail and dark-covered kingfisher are uncommon travelers. An assortment of water birds visits the supply, including cormorants, the spot-charged pelican, Asian openbill, painted stork, dark-headed ibis, and Eurasian spoonbill.[2] 

The open parkland draws in flying predators like white-bellied ocean falcon, peaked snake bird, dim-headed fish falcon, booted bird, and variable bird of prey hawk. Landbirds are in bounty and incorporate Indian roller, Indian peafowl, Malabar pied hornbill, and pied cuckoo. 

Oriental nursery reptiles, painted-lip reptiles, mugger crocodiles, Asian water screens, Bengal screens, and 30 types of snakes are found in the park.[1] Garra ceylonensis is an endemic fish species recorded in the park.[2] Introduced Oreochromis spp., goliath gourami, catla, and rohu are significant food fish species found in the supply.