From your hotel in the town of Machu Picchu Pueblo (also known as the town of Aguas Calientes) you simply walk to the main street where all the buses line up and depart every 10 minutes. No need for an address, the town is small enough you can go from the furthest hotel and walk 15 mintues to the main street and you cannot miss the buses. And don't worry about boarding the wrong bus. The only vehicles in Machu Picchu Pueblo are these buses. If you arrive the same day by train, the bus station is 5 minutes from the train station, you simply follow the crowd and you will end up at the main street where all the buses depart. With your printed ticket in hand and your original passport, you get in-line and board any bus at any time within their hours of operation. Bus to Machu Piccu Operating Hours: • Buses depart from Aguas Calientes every 10 minutes starting at 06:30am. Last bus to go up to Machu Picchu is at 2pm. The bus going to Machu Picchu will drop you off at the entrance of the Machu Picchu Historic Santuary.  After your visit, you simply board the buses that go back to the town. Return Bus from Machu Piccu Operating Hours: Buses return to Aguas Calientes every 10 minutes starting at 07:30am. Last bus to go down to the town is at 6pm.