Makalu (8,481m), the fifth highest mountain of the world lying on the Nepal – Tibet border has the virtue of observing the Nepal’s most major peaks to the east of the Everest. The trek starts right from the Arun Valley. This region, considered as one of the non-tourist area is famous for its unique flora and fauna not for Nepal but also for the world. This place still needs your exploration to come out with true delight and entertainment provided by birds and wildlife