trekker in the mountains, backpacker hiking in himalayas, trek to annapurna base camp

activity adrenaline adventure altitude ama backpack backpacker chomolungma cliff climb climber climbing dablam ebc ecotourism energy everest extreme free gokyo happy healthy high hike hiker hiking himalaya kala khumbu landscape lhotse mountain mountaineering nature nepal pattar peak people person pole rock sagarmatha snow sport success top tourist trail trekker trekking trip walk