Tashi Lapcha Phedi to Thyangbo Kharka (4,230m)
Region: Rolwaling–Khumbu Transition Zone
Distance: Approx. 10–12 km
Trek Duration: 8–9 hours (including pass crossing)
Elevation Change: Descent of 870 meters
Difficulty: Strenuous – high-altitude and technical descent
Terrain: Glacier, icefield, snow ridge, scree slopes, alpine pastures
Conquering Tashi Lapcha Pass (5755m)|Entering the Khumbu
Today marks the most technically demanding and scenically dramatic leg of the trek—crossing the formidable Tashi Lapcha Pass (5,755m) and descending into the isolated highlands of the Khumbu region. Starting before dawn from Tashi Lapcha Phedi Base Camp, climbers ascend steep snowfields under starlight, with the glacial ice crackling beneath crampons. This segment often requires fixed rope support and ice axe handling—guides ensure that all safety protocols are followed meticulously. As you reach the wind-scoured saddle of Tashi Lapcha, you stand atop one of Nepal’s great hidden frontiers. From here, 360-degree views explode across the Rolwaling Valley behind and the legendary peaks of the Khumbu Himalaya ahead—including Parchamo Peak (6,273m), Cho Oyu (8,188m), and Ama Dablam (6,812m).
Tashi Lapcha lies within the Greater Himalayan Sequence, a zone of high-grade metamorphic rocks such as gneiss, schist, and quartzite. The crossing itself cuts through a trans-Himalayan tectonic divide, where ancient geological forces once collided the Indian and Eurasian plates.
The Drolambau Glacier, a key feature of this stretch, dominates the descent, offering trekkers a rare opportunity to traverse live glacier terrain. Meltwater streams, moraine ridges, and frost-split rock formations paint a stark yet surreal landscape.
Descent into Thyangbo Kharka (4,230m)
After summiting the pass, the trail drops steeply over icy scree and snow chutes, requiring caution and steady footing. The descent transitions from glacial rock into rolling tundra meadows. As the oxygen increases, so does the presence of life—moss, alpine herbs, and signs of yak herding begin to return.
Thyangbo Kharka, meaning “High Pasture Camp”, rests on a broad alpine shelf surrounded by moraine-covered hills and dwarf juniper bushes. This site is traditionally used by Yak herders of the Khumbu during trans-Himalayan trade months. Today, it serves as a tranquil and scenic acclimatization stopover after the intense glacial crossing.
In the evening, trekkers can rest beside boulder-lined shelters or tent camps, looking back at the monumental wall of ice they crossed. The sunset here ignites the peaks in hues of bronze and gold—reminding every adventurer why this route remains one of the Himalaya’s most elite hidden journeys.