The Everest Base Camp trek is the most famous trekking route in the world, and for good reason. Over about two weeks you walk through Sherpa villages, cross high suspension bridges, pass ancient monasteries and finish at the foot of the tallest mountain on Earth. It is also a serious high-altitude adventure that needs proper planning. This guide covers everything you need to decide whether the trek is right for you and how to prepare: the day-by-day itinerary, the best time to go, how hard it really is, what's included in the cost, what to pack and how to train.