The trek to Everest Base Camp requires no mountaineering skills but demands respect for altitude and weather windows. You walk established trails through Sherpa villages, crossing suspension bridges and climbing stone staircases carved by decades of foot traffic. The route starts with a flight from Kathmandu to Lukla's Tenzing-Hillary Airport at 2860 meters, where the runway drops off a cliff edge and weather closes the window without warning. Flights cancel regularly during monsoon and winter — build three to five buffer days into both ends of your schedule or accept the possibility of missing international connections. Airlines overbook systematically because they know cancellations will thin the manifest.
From Lukla you descend to Phakding on the Dudh Koshi river, then climb to Namche Bazaar at 3440 meters, the Sherpa capital where trekking groups spend two mandatory acclimatization nights. The standard route continues through Tengboche at 3867 meters, home to the region's largest monastery, then Dingboche at 4410 meters where another rest day becomes necessary. From there the trail climbs through Lobuche to Gorak Shep at 5164 meters, the final settlement before base camp. Most trekkers reach Everest Base Camp itself at 5364 meters in the afternoon, touch the prayer flags, and return to Gorak Shep the same day because the base camp site offers no views of Everest — the Khumbu Icefall blocks the summit entirely from that angle.
Kala Patthar delivers what base camp cannot. This viewpoint at 5643 meters sits directly across from Everest's southwest face, and the pre-dawn climb from Gorak Shep puts you at the summit for sunrise when Everest, Nuptse, and the ridgeline glow orange against black sky. Most trekkers consider this the visual payoff of the entire route. The standard itinerary runs 12 to 16 days return depending on acclimatization pace and whether you fly out of Lukla immediately or walk down to Namche for a scheduled departure.
Altitude dictates every decision above Namche. The Himalayan Rescue Association maintains a clinic in Pheriche staffed by volunteer physicians during trekking seasons — consult himalayan-rescue.org for current protocols and consult your own travel physician before departure for altitude medication guidance. Entry requires the Sagarmatha National Park permit and the Trekkers Information Management System card, both processed through dnpwc.gov.np and ntb.gov.np or arranged through Kathmandu agencies. Hiring a guide adds cost but provides navigation, lodge booking leverage during high season, and critical communication capacity if altitude illness develops beyond walking range of the Pheriche clinic. Independent trekking remains legal and common, but the calculation changes at 4000 meters when symptoms can progress in hours.
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