There is actually no road that accesses Aguas Calientes from Cusco, so having a bus for the entire journey just isn't an alternative. The trains are your best bet! (which stops in Ollantaytambo along the way). This immediate practice route is provided by equally PeruRail and IncaRail and requires about https://cristianhjkkl.therainblog.com/26317411/a-review-of-machu-picchu-hiking-tours-from-cusco