Altitude is the real variable on the Everest Base Camp Trek, not distance or fitness. Kathmandu sits at around 1,400 metres; Everest Base Camp is close to 5,364 metres, and Kala Patthar, the viewpoint most people add on, tops 5,500 metres. This guide covers what altitude sickness actually looks like on this route, how the itinerary itself is built to manage it day by day, what our guides carry and do, and how it should shape your own planning before you fly.
What it feels like
Mild altitude sickness usually shows up as a headache, tiredness beyond what the day’s walking explains, loss of appetite, or trouble sleeping. These are common above roughly 3,000 metres and are not a reason to panic on their own. The warning signs that do matter are confusion, a cough that produces fluid, trouble walking in a straight line, or breathlessness at rest. Any of those mean descending immediately, not waiting to see if it passes.
How the 14-day itinerary is built around this
The standard mountaineering guideline above 3,000 metres is to gain no more than 300 to 500 metres of sleeping altitude a day, with a rest day roughly every 1,000 metres. Our itinerary follows that shape closely rather than racing to Base Camp:
- Day 3: Phakding (2,610 m) to Namche Bazaar (3,440 m), the first real jump.
- Day 4: Acclimatisation day in Namche. Walk up to Hotel Everest View at 3,880 m, then sleep back down at 3,440 m.
- Day 6: Tengboche (3,860 m) to Dingboche (4,410 m).
- Day 7: Second acclimatisation day. Hike up to Nangkartshang at 5,083 m, then sleep back down at 4,410 m.
- Day 9: Lobuche (4,910 m) to Gorak Shep (5,190 m) and on to Everest Base Camp (5,364 m) and back.
- Day 10: Kala Patthar at 5,555 m before dawn, the highest point of the trek, then down to Pheriche (4,240 m) the same day to lose altitude fast.
“Climb high, sleep low” shows up twice in that list by design. Both acclimatisation days send you higher than where you’ll actually sleep that night, which is the single most effective thing you can do to adjust short of spending more days on the mountain.
Why acclimatisation days matter more than fitness
A strong trekker and a casual one are affected by altitude in roughly the same way, because it comes down to how fast your body adjusts, not how fit you are. We will not skip either acclimatisation day to save time, whatever the group’s pace looks like. Walking slowly, drinking enough water, and sleeping at a lower altitude than the day’s highest point whenever possible all help more than any single product or trick.
What our guides actually do
Our guides check on the group daily, not just when someone says something, and carry a pulse oximeter to monitor oxygen saturation and heart rate rather than relying on how someone says they feel. If mild symptoms appear, the first response is usually to stop ascending for a day and let the body catch up before going higher. If symptoms don’t improve or get worse, the guide will arrange a descent, and in a serious case, a helicopter evacuation, which is paid by your travel insurance provider. This is also why we recommend travel insurance that covers high-altitude helicopter rescue before you fly to Lukla, not after, and why your policy details need to be with us before the trek starts rather than mid-emergency.
What’s built into the price for your safety
A first aid kit including the oximeter travels with your guide, who is a government-licensed, English-speaking senior guide rather than a freelance porter promoted for the season. Groups of more than four get an assistant guide as well. None of this is an add-on; it’s inside the standard trip price on the Everest Base Camp Trek page, alongside the full list of what’s included and excluded.
On medication
Some trekkers use a prescription medication to help with acclimatisation. We’re not doctors, and dosage and suitability vary by person, so talk to your own doctor before you travel if you’re considering this, rather than taking advice from a guide or a blog post. What a doctor decides is separate from what pacing and acclimatisation days can do, and we build our itineraries assuming no medication at all.
Before and after the trek
Altitude management starts before you leave Kathmandu. A night or two in the city to settle in, and a comfortable place to recover once you’re back down, both matter more than people expect. Our Kathmandu hotel options and private airport and city transfers are both things we can arrange around your trek dates so the altitude part of the trip is the only hard part.
If you want a lower-altitude introduction first
If this would be your first time above 4,000 metres, a shorter or lower route can be a sensible way to find out how your body handles altitude before committing to Everest Base Camp. The Annapurna Base Camp Trek tops out at 4,130 metres against Everest Base Camp’s 5,364, and we grade it Moderate rather than Strenuous, with no flight dependency to add uncertainty. At the other end, the Everest Three High Passes Trek crosses three passes above 5,300 metres over 20 days and assumes you already know how your body responds at altitude, so it’s not the place to find out for the first time.
If you’re deciding whether this trek is right for you
Altitude affects everyone differently, and there’s no way to predict in advance how you’ll respond. Our FAQ page covers the common questions on altitude, oxygen and evacuation, our guide licensing and permits page explains who you’ll actually be trekking with, and our cancellation and refund terms are worth reading before you pay a deposit, not after. If you’re still unsure which route fits your experience, ask us directly and we’ll give you a straight answer.