This huge 430km2 National Park in the northeastern State of Assam has as its great attraction its daily elephant rides at dawn.Visitors mainly flock here to view the park's wildlife, mostly the Indian unicorn rhinos numbering now almost 3000 pieces.Their horns are so precious that just in 2013, 37 rhinos have been killed by poachers.The powder of the horns is then sold to China and Vietnam for medical purposes.Its worth more than gold.better to arrange a safari with the second slot around 7am.Not only because of the morning fog and higher temperature, especially in winter, but also the spots where the rather shy rhinos are hiding in thick grass, has already been discovered by the earlier groups.Other animals are the Wild Buffalos, the King Cobra and Pyton snakes, the Swamp and Hog deers, Bengal tigers and migratory birds from Siberia, all very much appreciating the waterways of the wide Brahmaputra river.In fact the grassy lowlands are mostly flooded during the rainy season in summer.Best time to visit is from december to april when temperatures are low.