I have been to Nepal twice now, and the trek to Everest Base Camp remains one of the hardest and most beautiful things I have ever done. Before I went, I read everything I could find, and still the trail surprised me. So here is the honest version, the things I wish someone had told me before I stood at the bottom of the Khumbu with two weeks of walking ahead.
The altitude is the whole game. Above Lobuche the air gets so thin that every step becomes a decision, and no amount of gym fitness exempts you from that. What matters is going slowly, drinking absurd amounts of water, taking the acclimatization days seriously even when you feel strong, and listening to your body over your itinerary. The trekkers I saw fail were almost never the unfit ones. They were the ones in a hurry.
Life on the trail is simpler and rougher than the photos suggest. You sleep in tea houses that get very cold at night, hot showers become rarer and more expensive the higher you climb, and charging a phone costs money almost everywhere. None of this is a complaint. The simplicity is half the magic. But pack for it: a proper sleep system, layers you can trust, and a power bank that holds out. Getting the packing right matters enough that I turned my own trail-tested list into a small guide, the Everest Base Camp Packing Guide, with everything I carried, what I regretted, and the bonus items that saved me.
And then there is Nepal itself, which deserves more than being treated as the hallway to a mountain. Kathmandu's chaos, the lakeside calm of Pokhara, the villages of the Khumbu where Sherpa families have hosted trekkers for generations: the country kept stealing the show from the summit views. If you are planning your own trip, my Nepal eGuide is the full version of everything I know, sixty-five pages of routes, local contacts and the places I send my own friends. The film from the trek, To the Foot of Everest, will show you why I keep going back.