You either do a few hours train ride from Cuszco and then the bus ride, or you take the Inca trail which is a four day stroll

Having endured Peruvian buses I’m honestly surprised this doesn’t happen more often. Taking the bus from Agua Caliente up to Macchu Picchu over switchback angler switch back was one of the hairiest experiences of my entire life. Every time your side of the bus is at the drop you can’t see ground looking out of the window