portrait young hiker backpacker man in sunglasses smiling in makalu barun park route during high altitude acclimatization walk.

acclimatization active activity acute adventure altitude ams backpacker backpacking barun base camera camp climber climbing concept during enjoying everest extreme freedom glasses high hiker hiking himalaya himalayas image khare kothe landscape makalu male man mera mountain mountaineer mountaineering mountains nature nepal outdoor outdoors park path peak people portrait protection route sickness smiling sport sunglasses travel trekker trekking vacation walk young