two rope hanging suspension bridges in nepal himalayas under namche bazar above dudh koshi nadi river, mount everest base camp

above adventure asia base bazaar bazar bridge bridges camp canyon construction creek crossover danger dependent dudh everest face foot footbridge footpath hanging himalaya himalayan himalayas hung khumbu koshi landscape lukla mount mountain nadi namche nepal nepalese nepali over pendent river rock rope steel stream suspension tourism trail travel trek trekking two under uperbridge valley view walk way