All about Annapurna base camp trek

Have you ever considered a hike thinking about the height you will cover instead of the distance? You may never have done it. Nothing happens. We had not seen a walk – or trekking. We left that to the climbers. But all this changes when you are in a country of climbers and when the walk is between 8,000 meter high mountains. We are talking about the Annapurna base camp trek. Would you be able to walk a kilometer vertically from 2,700 meters above sea level to 3,700 in one day?