hiker trekking in green mountains on trail between jiri and lukla - lower part of everest trek in himalayas

active adventure architecture backpacker beautiful blue building environment everest green hiker hiking hill himalaya himalayas house jiri karikhola landscape lower lukla man mount mountain mountains natural nature nepal nunthala outdoor part people person recreation region rural sagarmatha sky solukhumbu summer tourism tourist trail travel tree trek trekker trekking valley view village walk