As they trek toward basecamp, their basecamp support staff and high-altitude workers are already on the mountain, carrying loads and preparing the route to the summit.
The best weather for reaching the top of Everest typically arrives in the second half of May, but preparations for a successful ascent begin months beforehand. Most teams assemble in Kathmandu in late March to begin acclimatization. As they trek toward basecamp, their basecamp support staff and high-altitude workers are already on the mountain, carrying loads and preparing the route to the summit.