This has seemed like a looong week. We arrived in Cuzco City (3600m above sea level) early Tuesday morning having heard a lot about altitude sickness, but it wasn't too bad… neither of us suffered the nausea, dizziness and headaches. So we managed to steer clear of the chancer selling oxygen to tourists at the airport terminal, it was a good effort tho, not as if its abundant in the atmosphere or anything… That said, we were totally knackered climbing 4 f...