Cho Oyu Expedition

• September 8 – October 6, 2025

Costs Includes:

• Airport pickup upon arrival in Kathmandu
• Accommodations at the Yak & Yeti hotel for 2 nights before and 1 night after the expedition
• All ground transport during the expedition
• All accommodations during the drive to base camp
• All group gear such as tents, cooking equipment, climbing gear
• All food and meals during the expedition outside of Kathmandu (imported and local foods)
• All climbing permits and administration expenses owed to China.
• Western guide, support staff including climbing Sherpas, cooks, porters.
• Expert high altitude leadership
• 4:1 max guide to climber ratio
• 1:1 sherpa to climber ratio
• Backcountry / wilderness medicine staff
• Professional weather forecasts
• 6 bottles O2/climber, mask, regulator
• Unlimited WiFi in base camp
• Consulting for use of Hypoxico altitude tent training system if desired

Costs Do Not Include:

• Wire transfer fee
• Airfare to Nepal
• Meals in Nepal
• All expenses incurred for an early departure from the expedition.
• Medical and evacuation insurance, trip cancellation insurance.
• Personal items (see gear list)

Cancellation/Refund Policy

• There are no refunds for the deposit or balance payments for this expedition. This includes but is not limited to, expeditions that conclude without reaching or making progress towards expedition objective(s) (for example, the summit) due to route conditions, weather, insufficient manpower, or any other factor outside the control of Madison Mountaineering.
• Expedition leader has the final say on the expedition conclusion and will make all best efforts towards reaching expedition objective(s) within our margin of safety.
• Participants that choose to leave an active expedition for any reason are not entitled to any refunds
• Madison Mountaineering, LLC highly recommends trip cancellation insurance for all expeditions
• Due to the nature and heavy costs of government and operator permits, Madison Mountaineering must adhere to a stringent refund policy
• Deposit due with registration materials
• All balances are due 120 days prior to departure date unless otherwise specified
• Participants whose balances are not received by the 120-day deadline as stated above, risk forfeiture of their funds and their place on the expedition

Note: Madison Mountaineering, LLC reserves the right to waive any fees. As we offer personalized service, we will attempt to accommodate changes and cancellations when necessary, waiving certain fees when feasible. Deposits paid by participants acknowledge the above cancellation terms.

Print Gear List

Base Layers

• Synthetic Short Underwear (2-3 pair): non-cotton style underwear
• Lightweight Long Underwear (2-3 pair): long sleeve shirt and long pants
• Heavyweight Long Underwear (1 pair)
• Short Sleeve Synthetic Shirt (1-2 pair)

Mid Layer

• Soft Shell Jacket: to be worn over other layers
• Soft Shell Pants: very breathable and water repellant
• Lightweight Nylon Pants (1-2 pair)

Waterproof/Rain Layers

• Hard Shell Jacket with hood: waterproof and breathable shell jacket
• Hard Shell Pants: waterproof and breathable shell pants

Insulation Layers 

• Heavyweight Insulated Down Jacket with hood: we primarily wear this when climbing below Camp 2
• Insulated Pants: worn primarily when climbing below Camp 2
• Down Suit: worn when climbing above Camp 2

Headwear

• Warm Hat: synthetic or wool hat (ski hat)
• Balaclava: to protect your neck and face in high winds
• Baseball Cap or other sun hat: to shade your face/neck from the sun on a hot day
• Bandana or Buff: to protect your neck/face from the sun

Eyewear 

• Glacier Glasses: full protection with side covers or wrap around
• Ski Goggles: to be worn on summit day in the event of high winds – (2nd pair optional)

Gloves

• Lightweight Synthetic Base Layer Gloves: for wearing on a hot day
• Soft Shell Gloves: to wear for moderate cold/wind
• Shell Glove with Insulated Liner: to wear for severe cold/strong wind
• Expedition Mitts: large enough to fit a liner glove inside
• Heated Gloves (optional): Battery-powered heated gloves

Footwear

• Liner Socks (3 pairs)
• Wool or Synthetic Socks (6 pairs)
• Heated Socks (optional)
• Mountaineering boots
• Hiking Boots/Shoes: comfortable boots or shoes for the trek to base camp
• Camp boots: comfortable boots for wearing in camp
• Gaiters (optional)
• Booties (optional)

Sleeping Equipment

• Sleeping Bag (for high camps): rated to at least -40°F. Goose down or synthetic
• Sleeping Bag (for base camp): rated to at least -20°F
• Self-inflating Sleeping Pads (2): full length is preferred, 1 for base camp and 1 for high camps
• Closed-cell Foam Pad: to be used in conjunction with the inflating pad for warmth and comfort when sleeping
• Earplugs

Mountaineering Gear

• Expedition Backpack: approximately 105L
• Compression Stuff Sacks: for reducing the volume of the sleeping bag, down parka, etc., in your pack
• Trash Compactor Bags: to line backpack and stuff sacks as well as for separating gear
• Backpack Rain Cover (optional)
• Trekking Backpack: to carry on the trek to base camp. Simple and light.
• Trekking Poles with Snow Baskets: adjustable poles
• Ice Axe: general mountaineering tool (65cm)
• Crampons: general mountaineering crampons
• Climbing Helmet: must be able to fit over your warm hat
• Ascender: 1 right or left-hand ascender
• “Y” Rig for ascender and safety carabiner
• Accessory Cord: 30 feet (9m) of 6mm accessory cord
• Alpine Climbing Harness: mountaineering harness, with adjustable leg loops. Not a rock-climbing “sport” harness
• Carabineers: 3 regular and 3 locking
• Carabineer for progression lanyard
• Belay/Rappel device
• Headlamp: with 2 extra sets of new batteries

Travel Items

• Large Duffel Bags with Locks (2): for transporting gear
• Carry-on Backpack: can use trekking backpack, approximately 18” x 16” x 10” (46cm x 41cm x 26cm)
• Travel Clothes: for days in cities and towns
• Lightweight journal, sketchbook, pencils, pen
• U.S. cash: for currency exchange to purchase SIM cards or merchandise in cities and villages

Additional Food Items

• Snack Food: bring a few days’ supply of your favorite climbing snack food such as bars, gels, nuts, beef jerky, etc.
  variety of salty and sweet is good

Other Equipment

• Cup: plastic 16 oz. minimum cup or mug
• Bowl: large plastic bowl for eating dinner or breakfast
• Spoon: plastic spoon (Lexan)
• Water Bottles (2 or 3): wide mouth bottles with 1-liter capacity
• Water Bottle Parkas (2): fully insulated with zip opening
• Water Treatment (optional): UV-based or tablets
• Thermos: 1 liter
• Heated Insoles (optional): battery powered for your boots
• Hand Warmers
• Sunscreen: SPF 50 or better
• Lip Screen (2 sticks): SPF 30 or better
• Toiletry Bag: include toilet paper and hand sanitizer
• Pee bottle: 1-liter minimum bottle for convenience at night in the tent
• Female Urination Device (FUD)
• Knife or Multi-tool (optional)
• Small Personal First-aid Kit: include athletic tape, band-aids, Ibuprofen, blister care, cough drops, etc.
• Medications and Prescriptions: bring antibiotics (Azithromycin, etc.), and altitude medicine such as Diamox and dexamethasone
• Handkerchiefs/Bandanas (optional)

Optional Electronics

• Country-appropriate power plug adapters and power transformers
• Avalanche Transceiver
• Adventure Sports Watch: such as Garmin fēnix 6
• GPS/Personal Satellite Communicator: such as Garmin inReach Mini
• Personal Power System: such as Goal Zero Nomad 28 Plus Solar Panel and Sherpa 100AC Power Bank
• Digital Entertainment: movies, tv shows, music, books loaded on to smartphone, iPad, Kindle
• Camera: bring extra batteries, charger, and memory cards
• Portable Travel Humidifier: battery powered

Madison Mountaineering is recognized for well thought out strategy in leading high altitude climbing expeditions, as well as high-quality service throughout. We have two decades of experience in the planning and coordination of mountaineering expeditions, our reputation is excellent. We strive to make each expedition the best possible experience for our climbers and focus on our 3 primary goals of success in reaching the summit, returning safely, and having fun! Safety is always our number one priority.

Our guides are some of the best and most experienced in the industry, having a strong grasp of technical climbing, expedition, and high altitude experience, along with strong interpersonal skills. Our teams are small and equipped with the best support available to ensure the highest chance of success. We are renowned for our comfortable base camps, high-quality food, first-rate communications, and medical support services, all of which are overseen by a professional member of our team.

Most of our climbers have either climbed with us before, been referred by a friend who has climbed with us, or met one of our teams while attempting another peak and decided to join us for their next expedition. We work hard to facilitate safe, successful, and enjoyable expeditions for all of our climbers. Our track record and past climber testimonials prove we are highly competent experts in our field and love what we do!