25/05/2026
The Everest Base Camp trek looks a certain way in photos. The reality is 12 days, significant altitude, and sustained physical effort that surprises most first-time trekkers regardless of how fit they are.
After 16 years of organizing and guiding EBC treks in Nepal's Khumbu region, we have watched the same patterns repeat. The trekkers who struggle are rarely the least prepared in terms of gear. They are usually the ones who did not know what to actually prepare for.
These are the things that consistently make the difference:
1. Fitness alone does not prevent altitude sickness. Above Namche Bazaar, the strongest trekkers are often the ones who push too hard and turn back earliest.
2. Slow pace and acclimatization matter more than physical condition.
Walk slowly from the first day out of Lukla. Energy spent carelessly early on is energy you will not have above 4,000 meters.
3. Appetite loss above 4,000 meters is common. Your body still needs fuel at altitude. Eat something at every meal even when you have no interest in food.
4. If you plan to use Diamox, take it at home first. Side effects including tingling, nausea, and blurred vision are real. The trail is not the place to find out how your body responds.
5. Use your time in Kathmandu to rest before the Lukla flight. Starting the trek already fatigued is one of the most common and avoidable mistakes we see.
6. Teahouse dining rooms are warm and crowded. Poor ventilation at altitude affects sleep and how you feel the next day. Step outside for fresh air in the evenings and leave your window slightly open at night.
7. Your guide can only help you with the information you give them. Hiding symptoms to push on rarely ends well. Be honest early.
Full guide covering 14 things worth knowing before you go: https://mosaicadventure.com/the-ultimate-guide-to-everest-base-camp-trek/