The Everest Three High Passes Trek - crossing the Kongma La (5,535 m), the Cho La (5,420 m), and the Renjo La (5,360 m) in a single circuit of the Khumbu - is the most complete and most challenging non-technical trekking itinerary in Nepal. It visits every major destination in the Everest region simultaneously: the Khumbu Icefall and Base Camp, the extraordinary Gokyo Lakes and the Ngozumba Glacier, and the finest panoramic viewpoints in the Himalaya - Gokyo Ri, Kala Patthar, and the Renjo La summit itself - connected by three high glaciated passes requiring genuine physical fitness, a head for exposure, and adequate acclimatisation time.
Why Three Passes Instead of the Standard EBC Route?
The standard EBC route is out-and-back by nature: you walk the same valley twice and see the same landscape in reverse on the return. The Three Passes circuit eliminates this repetition by crossing between the Khumbu valley and the Gokyo valley via the Cho La, connecting the Gokyo valley to the Phortse approach via the Renjo La, and adding the Kongma La as a high-altitude crossing between Chhukung and Lobuche. The result is a genuine circuit - three different valley systems, never repeating terrain - with EBC and the Gokyo Lakes both included.
The Three Passes - What Each One Involves
Kongma La (5,535 m) is the highest and most physically demanding of the three passes. The ascent from Chhukung (4,730 m) gains 800 metres on a rocky, cairned path with no technical sections but significant loose terrain and wind exposure. The descent to Lobuche crosses the Khumbu Glacier moraine. The view from the pass - the full Khumbu Icefall and Everest massif to the north, the Chhukung valley and Imja Glacier to the south - is one of the finest on any trekking route in Nepal.
Cho La (5,420 m) is the most technically interesting of the three, requiring crampon use on the glacier section immediately below the pass crest. The ascent involves a steep rocky approach followed by a 30-45 minute glacier crossing to the pass. The glacier section is genuinely icy in all seasons and slippery without crampons - this is one pass where carrying crampons is not optional. The Cho La sits between the Gokyo valley and the Khumbu, delivering a dramatic visual transition from the turquoise lakes landscape to the grey glacial world of the upper Khumbu.
Renjo La (5,360 m) is the most scenically spectacular crossing - a wide, rocky saddle above Lungden with a view from the top that includes all five Gokyo Lakes visible simultaneously to the south, and the Everest massif, Cho Oyu, and the full western Khumbu range to the north. The Renjo La is the least technically demanding of the three - no glacier section, straightforward rocky terrain on both sides.
Itinerary Overview
The full Three Passes circuit from Lukla to Lukla takes 18-21 days. The standard order is: Lukla → Namche (two nights) → Tengboche → Dingboche (two nights) → Chhukung → Kongma La → Lobuche → Gorak Shep → EBC → Kala Patthar → Dzongla → Cho La → Thagnak → Gokyo (two nights, with Gokyo Ri ascent) → Lungden → Renjo La → Thame → Namche → Lukla. The Gokyo Ri ascent (5,357 m) provides the panorama of Everest, Lhotse, Makalu, Cho Oyu, and the Ngozumba Glacier that is considered one of the finest in Nepal.
Fitness Requirements and Adding Island Peak
The Three Passes trek is classified as strenuous and is not appropriate for first-time Nepal trekkers. The combination of altitude (multiple nights above 5,000 m), the technical glacier section on Cho La, and sustained daily effort over 18-21 days requires a baseline of serious trekking fitness. Crampons are required for the Cho La - this is not debatable. The trek is frequently combined with Island Peak (Imja Tse, 6,189 m) at Chhukung, creating the Khumbu's most complete single-itinerary mountain experience at 21-23 days total.
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