Royal Chitwan National Park, which is situated 120 kilometers southwest of Kathmandu, houses one of Nepal's largest natural parks. A wide range of wildlife including the one-horned rhinoceros, several species of deer, sloth bear, leopard, wild boar, fresh water dolphin crocodile, the royal Bengal tiger and more than 350 species of birds are found here. Visitors to Chitwan may view the wildlife on elephant back excursions, nature walks, canoe trips and jungle treks. A three or at least a four-day stay is recommended for a full experience of the wilderness. Visitors may also take a raft trips, driving from Kathmandu to the river Trisuli or Seti Khola and then spend some days on river camping en route.