Cho Oyu Expedition via Northwest Ridge
- 47 days
- 8,188 m max
- extreme
- Up to 12
- Autumn (Aug–Sep)
We guide mountaineers up the 8,188 m Northwest Ridge of Cho Oyu, the sixth highest peak in the world.
At a glance
Trip overview
Cho Oyu, known as the Turquoise Goddess, stands at 8,188 m on the border between Nepal and Tibet. As the sixth highest mountain on Earth and situated roughly 20 km from Mount Everest, it offers a rigorous objective for climbers stepping up to the 8,000-metre tier. Our expedition follows the conventional Northwest Ridge route, presenting a more approachable profile than neighbouring giants while still demanding respect for high-altitude hazards.
This 47-day itinerary balances thorough acclimatisation through Tibet with structured rotations on the mountain. We handle every operational detail, from permits and logistics in Kathmandu to transport across the Tibetan plateau via Lhasa and Shigatse, establishing a reliable support structure up to Advance Base Camp.
We design this climb for mountaineers who have solid experience on 6,000-metre and 7,000-metre peaks, comfortable with crampon use, fixed-line travel, and extended periods operating in low-oxygen environments. Our lead guides bring extensive hands-on experience on Cho Oyu, maintaining strict safety margins and managing every controllable factor to support your summit attempt.
Why this trek
Trip highlights
8,188 m Summit
Stand atop the world's sixth highest peak via its relatively broad summit plateau.
Northwest Ridge Route
Climb the classic, technically straightforward route pioneered by early expeditions.
Tibetan Approach
Travel overland through Lhasa, Shigatse, and Old Tingri to reach Chinese Base Camp.
Structured Acclimatisation
Gradual altitude gain with scheduled rest days at Old Tingri and Base Camp.
Day-by-day itinerary
Day 1
Arrival in Kathmandu and transfer to hotel
Meals: B
Day 1
Arrival in Kathmandu and transfer to hotel
Meals: B
Our team meets you at Tribhuvan International Airport upon arrival and transfers you to our partner hotel in Kathmandu. We use the afternoon to settle in and check personal gear inventories.
Day 2
Welcome brief, gear check and official formalities in Kathmandu
Meals: B / L / D
Day 2
Welcome brief, gear check and official formalities in Kathmandu
Meals: B / L / D
We hold our formal expedition briefing at the office, reviewing the schedule, communication protocols, and safety procedures. Our lead guides inspect personal mountaineering equipment to ensure everything meets required standards.
Day 3
Tibet visa collection day and expedition briefing
Meals: B / L / D
Day 3
Tibet visa collection day and expedition briefing
Meals: B / L / D
We finalise paperwork with the Chinese Embassy, collecting your Tibet group visa. Final administrative checks are completed before our departure.
Day 4
Fly to Lhasa and transfer to hotel
Meals: B / L / D
Day 4
Fly to Lhasa and transfer to hotel
Meals: B / L / D
We board a morning flight from Kathmandu across the Himalayan range to Lhasa Gonggar Airport. Our local transport meets us for the transfer into the city at 3,650 m to begin initial altitude adaptation.
Day 5
Drive to Shigatse
Meals: B / L / D
Day 5
Drive to Shigatse
Meals: B / L / D
The journey follows the Friendship Highway alongside the Brahmaputra River, passing agricultural valleys and high passes before reaching Shigatse at 3,840 m.
Day 6
Drive to Old Tingri
Meals: B / L / D
Day 6
Drive to Old Tingri
Meals: B / L / D
We continue westward across the Tibetan plateau, crossing high windy passes with views of distant peaks before arriving in Old Tingri at 4,390 m.
Day 7
Acclimatisation / rest day in Old Tingri
Meals: B / L / D
Day 7
Acclimatisation / rest day in Old Tingri
Meals: B / L / D
Today is dedicated to physiological adaptation. We take a short hike on the surrounding ridges to assist with red blood cell production before returning to our lodge.
Day 8
Drive to Cho Oyu Chinese Base Camp via Rongbuk Monastery
Meals: B / L / D
Day 8
Drive to Cho Oyu Chinese Base Camp via Rongbuk Monastery
Meals: B / L / D
We leave the main highway, driving towards the Everest region and visiting Rongbuk Monastery before turning towards the Cho Oyu valley to establish Chinese Base Camp.
Day 9
Chinese Base Camp
Meals: B / L / D
Day 9
Chinese Base Camp
Meals: B / L / D
We spend the day organizing group gear, setting up camp infrastructure, and allowing our bodies to adjust further to the base elevation.
Day 10
Chinese Base Camp
Meals: B / L / D
Day 10
Chinese Base Camp
Meals: B / L / D
Another day at Chinese Base Camp is used for short walks, hydration routines, and final equipment sorting ahead of the move higher up.
Day 11
Chinese Base Camp
Meals: B / L / D
Day 11
Chinese Base Camp
Meals: B / L / D
We conduct medical checks, review oxygen systems, and brief the team on mountain safety protocols.
Day 12
Drive to Cho Oyu Base Camp
Meals: B / L / D
Day 12
Drive to Cho Oyu Base Camp
Meals: B / L / D
Vehicles transport our equipment further up the rough tracks towards the higher base camp area, where we pitch our primary tents for the climbing phase.
Day 13
Acclimatisation / rest day at Cho Oyu Base Camp
Meals: B / L / D
Day 13
Acclimatisation / rest day at Cho Oyu Base Camp
Meals: B / L / D
A mandatory rest day at Base Camp lets everyone recover from the transition and hydrate thoroughly before undertaking carrying loads to intermediate elevations.
Day 14
Trek to Intermediate Camp
Meals: B / L / D
Day 14
Trek to Intermediate Camp
Meals: B / L / D
We carry initial loads on foot up towards Intermediate Camp, testing our pace on the rocky moraine trails under the watchful face of the mountain.
Day 15
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 15
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
This multi-week block forms the core climbing window. We establish Advance Base Camp, complete rotations to Camp 1, Camp 2, and Camp 3, monitor weather forecasts closely, and position ourselves for a summit push when conditions align.
Day 16
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 16
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Continuing our rotation schedule, climbers move between camps to build endurance and physiological adaptation at high altitudes.
Day 17
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 17
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Weather monitoring and rest intervals at Advance Base Camp dictate our pace as we wait for a stable high-pressure window.
Day 18
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 18
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Team members execute carry loads to higher camps, establishing supply caches of food, fuel, and supplemental oxygen.
Day 19
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 19
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Active recovery days at lower camp tiers help repair muscle tissue and maintain hydration levels.
Day 20
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 20
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
We track jet stream movements and local wind patterns with our meteorology service to pinpoint the optimal summit date.
Day 21
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 21
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Climbers rest and review route conditions with our Sherpa team leaders in preparation for the upcoming rotation.
Day 22
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 22
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
We ascend again to Camp 1 and Camp 2, testing our stamina under loaded packs in thin air.
Day 23
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 23
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Rotational climbs continue on the Northwest Ridge, reinforcing muscle memory for technical sections.
Day 24
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 24
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Descending back to Advance Base Camp for recovery following high rotations.
Day 25
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 25
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Rest and nutrition replenishment at Advance Base Camp while waiting out transient high-altitude storms.
Day 26
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 26
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Equipment checks and regulator servicing keep all climbing hardware functioning reliably in sub-zero temperatures.
Day 27
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 27
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Group discussions on pacing, team spacing, and summit day protocols with lead guides.
Day 28
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 28
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Low-intensity walks around the camp perimeter maintain blood circulation during downtime.
Day 29
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 29
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Final weather briefings indicate potential windows; team members conserve energy.
Day 30
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 30
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Standby status at Advance Base Camp as we monitor barometer readings and wind speeds.
Day 31
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 31
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Packing personal summit packs with down suits, mitts, and hydration bladders.
Day 32
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 32
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Commencing the summit rotation as we depart Advance Base Camp for Camp 1.
Day 33
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 33
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Climbing from Camp 1 to Camp 2 along the fixed snow and rock rib.
Day 34
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 34
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Advancing from Camp 2 to Camp 3 on the upper mountain slopes.
Day 35
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 35
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Summit push day: leaving Camp 3 in the early hours, navigating the plateau, reaching the 8,188 m summit, and descending safely back to Camp 3 or Camp 2.
Day 36
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 36
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Continuing descent from high camps back to the relative safety of Advance Base Camp.
Day 37
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 37
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Rest and recovery at Advance Base Camp following the demanding summit rotation.
Day 38
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 38
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Clearing higher camps and packing down remaining equipment caches.
Day 39
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 39
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Final consolidation of gear at Advance Base Camp before breaking camp.
Day 40
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 40
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Standby day in case of weather delays during camp teardown operations.
Day 41
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Day 41
Climbing period (Advance Base Camp - Summit - Advance Base Camp)
Meals: B / L / D
Final packing wrap-up and preparation for valley evacuation.
Day 42
Descend to Cho Oyu Base Camp
Meals: B / L / D
Day 42
Descend to Cho Oyu Base Camp
Meals: B / L / D
We pack all remaining gear and trek down from Advance Base Camp to Base Camp, concluding our time on the mountain slopes.
Day 43
Drive back to Shigatse
Meals: B / L / D
Day 43
Drive back to Shigatse
Meals: B / L / D
Vehicles meet us at Base Camp for the overland drive across Tibet back to Shigatse for hot showers and comfortable hotel beds.
Day 44
Drive to Lhasa, overnight at hotel
Meals: B / L / D
Day 44
Drive to Lhasa, overnight at hotel
Meals: B / L / D
We travel the final road section back to Lhasa, enjoying a celebratory group dinner in the city.
Day 45
Fly back to Kathmandu and transfer to hotel
Meals: B / L / D
Day 45
Fly back to Kathmandu and transfer to hotel
Meals: B / L / D
We board our return flight from Lhasa to Kathmandu, where our transport meets us for the transfer back to our hotel.
Day 46
Leisure day in Kathmandu
Meals: B / L / D
Day 46
Leisure day in Kathmandu
Meals: B / L / D
A free day in Kathmandu for relaxing, sorting equipment, or exploring the city streets.
Day 47
Depart for the country of residence
Meals: B
Day 47
Depart for the country of residence
Meals: B
We provide your airport transfer to Tribhuvan International Airport for your international flight home.
Inclusions
What’s included
Included
- Airport pickup and drop-off in Kathmandu
- Hotel accommodation in Kathmandu and Tibet
- All meals during trek and expedition phase
- Tibet group visa and travel permits
- Experienced mountain guides and Sherpa support
- Group climbing equipment and oxygen systems
Not included
- International airfare
- Nepal entry visa fee
- Travel insurance covering high-altitude mountaineering and rescue
- Personal climbing clothing and technical gear
- Tips for guides and local staff
Before you go
Good to know
Fitness expectations
This expedition requires advanced mountaineering competence and a high baseline of cardiovascular endurance. You should have prior summit experience on 6,000 m and 7,000 m peaks and be comfortable using crampons, ascenders, and ice axes on steep snow and ice.
Altitude & acclimatisation
Operating up to 8,188 m exposes the body to severe hypoxic stress. Our itinerary incorporates gradual ascent profiles through Tibet, scheduled rest days in Old Tingri, and systematic rotational climbs to higher camps before any summit attempt.
Logistics & permits
All logistics across Tibet, including group visas, travel permits, transport, and base camp infrastructure, require extensive advance planning. We manage these administrative requirements through our established operating networks.
Weather considerations
Himalayan weather is volatile, particularly above 7,000 m where jet stream winds dominate. We monitor forecasting data continuously and maintain flexibility in our schedule to capitalize on safe summit windows.
Route
Route overview
Altitude
Altitude profile
Pack list
What to pack
Mountaineering Boots (8000m rated)Essential
Footwear
Double or triple boots suitable for extreme cold.
Down SuitEssential
Clothing
Rated for high-altitude conditions above 7,000 m.
Gore-Tex Shell Jacket and TrousersEssential
Clothing
Waterproof and windproof outer layers.
Thermal BaselayersEssential
Clothing
Merino wool or synthetic moisture-wicking tops and bottoms.
Mountaineering Gloves and MittsEssential
Clothing
Heavy-duty down mitts and dexterity gloves.
CramponsEssential
Footwear
Step-in 12-point steel crampons compatible with boots.
Ice AxeEssential
Safety
General mountaineering axe.
HarnessEssential
Safety
Adjustable alpine climbing harness.
HeadlampEssential
Safety
High-output LED headlamp with spare lithium batteries.
Sleeping Bag (-40°C rated)Essential
Camping
Down sleeping bag for extreme altitude camps.
Paperwork
Permits & paperwork
We arrange
Handled in Kathmandu — nothing for you to do.Tibet Group Visa
VisaRequired for entry into the Tibet Autonomous Region.
Tibet Travel Permit
PermitOfficial regional travel authorization.
Good to know
Frequently asked questions
What climbing experience is required for Cho Oyu?
You should have proven summit experience on peaks of 6,000 m and 7,000 m, along with solid working knowledge of basic mountaineering techniques and fixed-line travel.
How is supplemental oxygen managed on the mountain?
We provide regulated oxygen systems, masks, and cylinders for use during the upper rotation and summit push, managed under the supervision of our experienced guides.
What is the accommodation like during the trip?
We use standard hotel accommodation in Kathmandu, Lhasa, and Shigatse. On the mountain, we supply spacious base camp tents and high-altitude sleeping tents.
How are medical emergencies handled?
Our lead guides are trained in high-altitude rescue and first aid. We carry comprehensive medical kits, portable hyperbaric chambers, and backup oxygen on the mountain.
How do we obtain the Tibet visa?
We collect your passport details in advance and process the necessary Chinese group visa documentation through our Kathmandu office during your arrival days.
What weight limits apply to gear transport?
Porters and yaks carry specified weight allowances for personal duffel bags during the approach phases. We outline exact luggage limits during the Kathmandu briefing.
Still have a question? Message us and our trip planner will reply within a working day.
Book your trip
Pick any start date on the calendar. We block the trip out over 47 days and confirm the plan with you before payment.
Start dateTrip runs
Ready to book Cho Oyu Expedition via Northwest Ridge?
Talk to a Himalaya Treks planner about departure dates, group discounts, or a customised private departure.
