Wilpattu is a fairly thick dary zone jungle interspersed with a number of flood plain  lakes banked with delicate white sands, it boasts an impressive variety of flora in huge expanses of forest and varied wildlife including deer, elephants, wild boar, sloth bears and leopards.
History and the description of the Willpattu National Park    
The Wilpattu National park and its surrounding are steeped in history and covered with legend popular legend  says that in 543 BC king vijaya landed kudrimalal and that he married kuweni, According to some ancient rains identified it is said that kuweni lived in the place now identified as the kali villu. Both Kudrimalai and kali villu are found in the willpattu. Furthermore history shows that Prince Saliya, son of king Sutugemunu lived with Asokamala in Maradankadawala in wilpattu over 2000 years ago also between Palangturai and kollankanattee are the remains of an old harbor. The Wilpattu National Park is the largest National park in the area with acreage of 131, 693 hectares. It is ranging from  sea levelto 152 meters about it.
Annual temperature in the park is around 27.2 Celsius and its annual rainfall is approximately 100mm. though situated in the dry zone, the climate inside the willpattu National park is very unlike that of the dry zone. Upon entering of going to a forest with abundant water is what enters the mind.

There are many villu and lakes at wilpattu. This is identified as the main topographical feature of the park. They are often flat and basin like while containing purely rain water.

The western sector of Willpattu is covered deeply with forested. Many species of flora can be identified at Wilpattu National park. There are three types of vegetation. Littoral vegetation, including salt grass and low scrub and further inland, monsoon forest with tall emergents, such as palu (manilkara haxandra), and satin (choloroxylon swieetenia) Milla (vitex attissima), Weera (Drypetes sepiarla) Ebony (Disopyros ebenum)  and Wewarna (Alesodaphne semecapriflolia)

Looking at the fauna of this national park mammalian diversity and ecological densities are highest. A total of 31 species of mammals have been identified at the willpattu national park. Mammals threatened with extinction are also there. The elephant (Elephs Maximus), sloth bear (Melursus ursinus), leopard (panthere pardus kotiya), and water buffalo (Bublus bubalis), are identified as the threatened species living within the wilpattu National park. Other wetland birds species as Garganey (Anas quer qued ula) white ibis (Threskiornis malanoce phalus), pin tail (Anas actuta) ,whisting teal (Dendrocygna actuta), whisiting teal (Senfeocygna javanica), Spoonbill (platalea lencorodia), Large white egret (Egretta alba modesta), cattle egret (Bubuicus ibis), and purple heron (Ardra purpurea), also found at the wilpattu National Park. At wilpattu anong the reptiles found the most common are the monitor (varanus bengalensis),  Mugger crocodile, (crocodylus palustris), common cobra (Naja Naja), Rat Snake (ptyas mucosus) Indian python (python molurus), pond tuetle (Melanonchelys Trijuga) and the soft shelled turtle (Lissemys punctata) who are resident in the large permanent villus, We can saw star tortoises (Geochelone elegans) roaming on the grassiandsat willpattu. Termites of the genus trinervitermes clan probably account  for the most significant proportion of the invertebrate bio mass. Termites are found not on the grasslands but actively living in the scrub forests. Nearly sixty lakes and tanks are found spread around the willpattu National park.