Hemis National Park (or Hemis High Altitude National Park) is a high altitude national park in the eastern Ladakh region of the state of Jammu and Kashmir in India.

Globally famous for its snow leopards, it is believed to have the highest density of them in any protected area in the world.[1] It is the only national park in India that is north of the Himalayas, the largest notified protected area in India (largest National park) and is the second largest contiguous protected area, after the Nanda Devi Biosphere Reserveand surrounding protected areas. The park is home to a number of species of endangered mammals, including the snow leopard. Hemis National Park is India’s protected area inside the Palearctic ecozone, outside the Changthang Wildlife Sanctuary northeast of Hemis, and the proposed Tso Lhamo Cold Desert Conservation Area in North Sikkim.

The park is bounded on the north by the banks of the Indus River, and includes the catchments of Markha, Sumdah and Rumbak, and parts of the Zanskar Range.

Snow leopard Trek is one of the few treks in Ladakh which can be done during winter, the best months are February and March. Snow leopards are very elusive felines and there is a higher chance of spotting them during winter when they descend to the valleys in search of food.Ulay.