Wilpattu National Park (Willu-pattu) Located in the Northwest coast lowland dry zone of Sri Lanka. The unique feature of this park is the existence of "Willus" (Natural lakes) - Natural, sand-rimmed water basins or depressions that fill with rainwater. The park is located 30 km west Anuradhapura and located 26 km north of Puttalam (approximately 204 km north of Colombo). The park is 131, 693 hectares and ranges from 0 to 152 meters above sea level. Nearly sixty lakes (Willu) and tanks are found spread throughout Wilpattu. 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. The Leopard population in Wilpattu is still not yet known.