Covering an area of 106 km2 (41 sq mi) in the Mugu and Jumla districts, it is the country's smallest national park.

[3] The summer is warm, but June to August is monsoon season, making the trek to Rara National Park difficult.

Above 3,200 metres (10,500 ft), the vegetation changes to a coniferous forest consisting of a mixture of fir, spruce and pine.

51 species of mammals reside in the park including musk deer, Himalayan black bear, Indian leopard, jackal, Himalayan tahr, yellow-throated marten, otter, dhole, gray langur, rhesus macaque, and red panda.

Also during festivals visitors and local people produce a lot of wastage causing water pollution.

From, Nepalgunj there is two ways to reach the lake, one is by following the salt route to Humla and another following a number of trails through Dolpo region.

Rara National Park is mainly served by Talcha Airport, which is 4 km east of the lake.