Endowed with springs, Everest Base Camp (5150m) was first used by the 1924 British Everest expedition. Tourists are not allowed to visit the expedition tents a few hundred metres away but you can clamber up the small hill festooned with prayer flags for great views of the star attraction.
Most people have their photo taken at the ‘Mt Qomolangma Base Camp’ marker, which indicates that you are at 5200m above sea level. (Other measurements have it at 5020m or 5150m.) The springs are just to the left of this marker.
Note that you can get mobile phone reception at Base Camp. Phone a friend. They’ll be thrilled.