karyolung and khatang peaks,zatrwa la pass,lukla,nepal

nepal karyolung khatang zatrwa zatra la pass col lukla valley panorama panaltopa tengi regi tau mera peak base camp trek climbing expedition mountains himalayas peaks ice snow glaciers adventure trekking sherpa sagarmatha tourism holiday river lodge asia khumbu unesco nature landscape scenery vista 8000er trip tour mountain lodging refreshment boarding traveler