Bardia National Park is the largest but the least explored and not crowded among the others. It is situated in the far west Terai region in Nepal with an area of 968 sq. km. It is thickly forested by Sal trees and is carpeted with grass, Savannah, and deep forest. It is home to endangered species like the rhinoceros, wild elephant, tiger, swamp deer, black buck, crocodile, gharial and Gangetic dolphin also includes many endangered like the Bengal florican, lesser florican, silver- eared media and Sarus Crane. It was famous for Royal hunting reserve. Only after 1982 previously known as Babai River Valley was renamed as Royal Bardia Wildlife Reserve It was only in 1988, when National Park was granted a status in order to preserve the dwindling species of a rare ecosystem, including flora and fauna, particularly the tiger and its other prey species. This park provides excellent habitat for most of the endangered species of wildlife and birds. Since 1994 basic facilities were provided for independent visitors.
The best time to visit Bardia National Park is from October to April as the weather is usually dry, with warm days and the cool nights. From mid-April, the temperature begins to rise and the days become hot and humid. The temperature can reach up to 45ºC in May. In June the monsoon rainy season begins and continues through September. It is unwise to visit the park during the monsoon season as the rains can last for days and transportation is severely limited by the extremely poor conditions of the roads.