Mount Everest, the highest peak in the world lies on the border between Nepal, Tibet, Sagarmatha Zone & China. Consequently, there are two main climbing routes to Mount Everest, the northeast ridge from Tibet & the southeast ridge from Nepal, besides other less-known climbing routes. Of these two frequently used routes, the southeastern ridge is the one that was used by Sir Edmund Hillary & Tenzing Norgay during the 1953 expedition to the summit.
The best time to climb the Everest is in May, when the jetstream is pushed northward & the weather is favorable. While September & October are also preferred by many, climbing usually gets difficult during this time due to additional snow deposit & fluctuating weather conditions.
The southeast ridge route begins the south side of Everest in Nepal. Expeditions fly into Lukla, pass through Namche Bazaar & then hike their way to Base Camp. The supplies & climbing equipments are carried by human porters or on yaks & dzopkyos. After spending a couple of weeks in Base Camp 1 acclimatizing to the rough weather & altitude, the climbers move forward to the Western Cwm & establish the Advanced Base Camp (ABC) at a height of 21,300ft.
From ABC climbers ascend to Camp 3 & further on to Camp 4. Here the climbers are faced by two challenges - The Geneva Spur & the Yellow Band. Beyond this hurdle is the South Col, where climbers literally enter the "Death Zone". The summit is a matter of just 2-3 days from here. However depending upon the weather & wind speed, one may either attempt to make it to the summit or be forced to descend down back to the Base Camp.
The ascent along the northeast ridge begins from the north of Mount Everest in Tibet. Expeditions trek all the way to the Rongbuk Glacier where the Base camp is set. From here the expeditions ascend to Camp 2 up to the base of Changtse. While Camp 3 is locted below North Col, Camp 4 is above & leads the way to Camp 5. A diagonal climb to the base of Yellow Band leads to Camp 6 from where expeditions make their final attempt to the summit. The top of the Everest is just a matter of three long snow steps from here.