Mount Everest Expedition

Spring (mid-April to late May) is the primary season for the Mount Everest South Col route, accounting for the large majority of all summits. The jet stream lifts off the summit in May, opening narrow weather windows of 24 to 72 hours that the expedition teams use for the summit push. Swotah's forecasting service monitors the 500 hPa wind profile and surface temperatures daily from late April. Most summits occur in the second and third weeks of May.

Autumn (September to October) is technically possible but rarely attempted on the South Col route because the post-monsoon jet stream re-establishes earlier and the windows are shorter and less reliable. A full post-monsoon Everest expedition is uncommon compared to spring. Winter and monsoon attempts are extremely rare and outside Swotah's programme. The season cards above show the month-by-month conditions on the approach trek and at altitude.

Climbing Mount Everest from the Nepal side requires a Nepal government climbing royalty of approximately USD 11,000 per person for the spring season (the most popular window). The fee is set by the Department of Tourism in Kathmandu and has been at this level since 2015; confirm the current rate with Swotah before booking as it is subject to government revision. Each expedition must have a licensed Liaison Officer from the Ministry of Tourism, whose costs are separate.

Additional mandatory permits include the Sagarmatha National Park permit and the Khumbu Pasang Lhamu Rural Municipality fee. The Icefall Doctors charge a per-climber fee each season for fixing and maintaining the route through the Khumbu Icefall; this is typically paid through the expedition operator. Swotah handles all government paperwork, coordinates with the permit office in Kathmandu and provides the Liaison Officer briefing. You need to supply a passport copy, passport photos and a personal climbing CV.

The approach from Lukla to Everest Base Camp uses teahouse lodges at Phakding, Namche Bazaar, Tengboche, Dingboche, Lobuche and Gorak Shep, with comfortable rooms, hot meals and (in Namche) hot showers. Gorak Shep is the last teahouse stop before the glacier moraine walk to Base Camp.

Everest Base Camp (5,364 m) is a tented camp on the Khumbu Glacier moraine, with dining and kitchen tents, sleeping tents, a toilet tent and a communication tent. Above EBC there are four high camps: Camp 1 (~6,000 m) in the Western Cwm above the Icefall, Camp 2 (~6,400 m) further up the Cwm, Camp 3 (~7,200 m) on the Lhotse Face, and Camp 4 (~7,900 m) on the South Col. High camps use double-walled expedition tents rated to extreme cold; climbers share tents. All camp infrastructure is set up by Sherpas before the first client rotation.

At Everest Base Camp, Swotah's cook team prepares three hot meals a day in the dining tent, with a mix of Western and Nepali dishes, fresh produce for the first weeks and long-life food later. Caloric needs at altitude are high and appetite suppression is common, so the kitchen team monitors nutrition and keeps variety high. Tea, hot chocolate and warm drinks are available around the clock.

Above Base Camp, high-camp food is pre-packed rations: freeze-dried meals, energy bars, nuts, chocolate and instant noodles that can be prepared on a small stove inside the tent. Appetite falls sharply above 7,000 m; eating even small amounts is important for maintaining energy. All drinking water at EBC is from filtered and boiled glacier meltwater. Above Camp 1 climbers melt snow; fuel and stoves are provided at each camp. Aim for 4 to 5 litres of fluid per day at altitude.

The expedition begins in Kathmandu with two days for briefing, permit collection and gear checks. Day 2 takes a 30-minute mountain flight from Kathmandu's Tribhuvan International Airport to Lukla's Tenzing-Hillary Airport (2,846 m), one of the world's more demanding short-runway airports. Flights are weather-dependent and can be delayed; the itinerary has buffer days built in.

The trek from Lukla to Everest Base Camp takes roughly 8 to 10 days depending on acclimatisation stops. The main trail runs through Phakding, Namche Bazaar, Tengboche, Dingboche, Lobuche and Gorak Shep. Supplies and expedition loads are carried by Sherpa porters on the approach; yaks may be used on the lower trail to Namche. Helicopter evacuations from EBC or the approach trail are arranged through Swotah's rescue contacts when necessary, and helicopter fees are reimbursed through expedition rescue insurance.

The South Col route climbs the Khumbu Glacier to Everest Base Camp at 5,364 m, then forces the Khumbu Icefall, a 600-vertical-metre tumble of crevasses and ice towers between EBC and Camp 1 (~6,000 m). The Icefall Doctors fix aluminium ladders over the major crevasses and set the ropes each spring; no two seasons have the same path through it.

Above Camp 1 the route enters the Western Cwm, a broad glacial bowl leading to Camp 2 (~6,400 m) at the base of the Lhotse Face. The Cwm is flat but hot in midday sun; parties move early. The Lhotse Face is a 1,200-vertical-metre ice wall at 45 to 50 degrees, climbed entirely on fixed ropes to Camp 3 (~7,200 m) and on to Camp 4 (South Col, ~7,900 m). From the South Col the summit route crosses the South East Ridge, passes the South Summit (~8,749 m), traverses the exposed Cornice Traverse and climbs the Hillary Step (or ice bulge) to the summit at 8,849 m. The round-trip from Camp 4 to the summit takes 10 to 18 hours depending on conditions and individual pace.

Successful acclimatisation is the central challenge of an Everest expedition. The standard programme runs two or three rotations through the Icefall before committing to the summit push. The first rotation reaches Camp 1 or Camp 2 and returns to EBC for a rest period of several days. The second rotation typically goes to Camp 2 or Camp 3, again followed by a rest at EBC. A third rotation to Camp 3 is common in stronger candidates. After the final rest period at EBC, the summit attempt begins with the full push to Camp 4 followed by the overnight summit bid.

Above 8,000 m the body deteriorates continuously. The summit window is normally open for 24 to 72 hours when wind speed at the summit drops below 30 knots. Swotah monitors detailed forecasts from a specialist high-altitude meteorological service and makes the go or no-go call at Camp 4, based on conditions. Supplemental oxygen is used from Camp 3 upward, typically at 2 to 4 litres per minute. Each climber carries 6 to 8 oxygen cylinders for the summit push, with Sherpa carries covered in the logistics.

Swotah's Everest expedition is built around an experienced Sherpa team. Each client is assigned a personal high-altitude Sherpa who accompanies them through all rotations and on the summit day. High-altitude Sherpas hold NMA (Nepal Mountaineering Association) certification, have multiple Everest summits and are trained in first aid, oxygen system management and short-haul rescue. The Sirdar (lead Sherpa) coordinates the whole team, manages camp logistics and maintains radio communication with the Expedition Leader at EBC.

Swotah's Expedition Leader is based at EBC throughout the climb, monitoring weather, coordinating with the Icefall Doctors, liaising with other expedition teams on the mountain and making safety decisions. The staffing ratio is typically 1 personal Sherpa per client for the summit push plus additional Sherpas for carries and camp maintenance. All Sherpas are insured, paid fair wages and equipped with the same high-altitude gear as clients.

Everest faces significant environmental pressure from the volume of expeditions each spring. Swotah follows Nepal Mountaineering Association guidelines on waste management: all waste, including human waste canisters, is carried down from high camps and disposed of at Gorak Shep or Namche. Discarding oxygen cylinders on the mountain is forbidden under Swotah's expedition rules. The programme also contributes to the Khumbu Icefall Doctors' fixed-rope maintenance fund, which benefits all teams on the mountain.

Tipping is customary and important for Sherpas and support staff, who work in extreme conditions for the duration of the expedition. A common guideline is USD 500 to USD 1,000 per client for the personal summit Sherpa, with smaller amounts for kitchen, camp and support staff. Swotah provides a tipping guide before departure. Tips should be given in cash (Nepali rupees or USD) and distributed on the last day in Kathmandu.