The vehicle will take you to the highest accessible point near Rongbuk Monastery at an altitude of approximately 5,154 meters. From there, the Everest Base Camp is about 4km away, requiring a hike or a ride on the eco-electric shuttle to reach. Travelers typically stay in the area for 4-5 days, but if you’re interested and in good health, a 15-day stay is certainly possible. For arrangements, you can contact the Travel Into China agency—note that the tour cost may be relatively high.