Take a morning flight to Nyingchi. Cross the panoramic Sejila Pass (4,728m) for a distant view of the sacred Mount Namcha Barwa if weather permits. Journey through the sea of trees at Lulang Forest (3,700m) and wander across high-altitude alpine pastures. In the afternoon, explore Gala Village to admire blooming wild peach blossoms against snow-capped peaks before returning to Nyingchi town. (Altitude: 2,900m - 4,728m)

Travel along China National Highway 318 to explore ancient stone castles surrounded by wild peach blooms and ancient forests. Continue to the emerald alpine waters of Basum Tso Lake (3,400m), surrounded by towering glaciated mountains. In the evening, arrive at the sacred holy city of Lhasa and check in to your hotel to acclimatize. (Altitude: 2,900m - 3,650m)

Drive west along the Yarlung Tsangpo River and ascend Gambala Pass (4,990m) to witness the turquoise sacred Yamdrok Lake (4,441m). Follow the lakeside road toward the hanging seracs and ice tongue of the mighty Karola Glacier (5,040m). In the evening, arrive in Shigatse, the historical heart of Tsang region, and stay at an oxygen-equipped hotel. (Altitude: 3,650m - 5,040m - 3,836m)

In the morning, visit the historic Sakya Monastery, acclaimed as the 'Dunhuang of Tibet' for its magnificent murals and massive library of scriptures. In the afternoon, ascend Gyawu La Pass (5,210m)—the only panoramic viewpoint where five 8,000-meter Himalayan giants can be seen simultaneously. Arrive at Everest Base Camp or Everest Town in time for the golden sunset glow over Mount Everest. (Altitude: 3,836m - 5,200m)

Wake up to the awe-inspiring morning light over the Himalayas. Wind back along the Everest highway, cross the dramatic Gyatso La Pass (5,248m) with panoramic mountain backdrops, and return through Tingri to Shigatse for an evening of relaxation and recovery. (Altitude: 5,200m - 3,836m)

Morning visit to Tashilhunpo Monastery, the traditional seat of the Panchen Lamas. Marvel at the world's largest gilded brass Future Buddha (Jampa) statue and the chanting halls of Tibetan monks. In the afternoon, drive back to Lhasa along the Yalong River and Yarlung Tsangpo River valleys. (Altitude: 3,836m - 3,650m)

Ascend the UNESCO World Heritage Potala Palace, the supreme symbol of Tibetan civilization. Visit the Yaowangshan Viewpoint to capture the iconic banknote perspective. In the afternoon, join pilgrims at Jokhang Temple and stroll the ancient Barkhor Street kora. Savor high-altitude rooftop afternoon tea with panoramic views of the Potala Palace. (Altitude: 3,650m)

Transfer to Lhasa Railway Station in the morning. Board the legendary Qinghai-Tibet Railway softly cushioned sleeper train to Xining. Cross the Roof of the World, marveling at the endless expanses of Kunlun Mountains, Hoh Xil Nature Reserve, Tanggula Pass (5,072m), and the turquoise waters of Cuona Lake right outside your window. (Altitude: 3,650m - 5,000m+)

Arrive at Xining Station in the morning. Transfer to Xining Airport and catch your connecting flight to Chengdu or your onward home destination, concluding this unforgettable Himalayan spring expedition. (Altitude: Approx. 2,261m)