Mount Everest Helicopter tour Boundless Adventure Provide Mount Everest Helicopter tour From Kathmandu Nepal. It is 4 hours around trip with landing at the 5540 meters high from sea level (Kalapathar) We are providing two different ways. 1, Privet tour 2, Sharing tour. 1, privet tour is you may do up to five person or with your family. Three person can get window of the Helicopter on...