Rail travel between Cusco and Machu Picchu may be impacted by landslides during the rainy season. As a precaution, rail travel is suspended between Cusco and Ollantaytambo, requiring passengers to take a bus between those cities instead of the train. However, trains still operate between Ollantaytambo and Aguas Calientes. Travel agencies will arrange transportation if you have purchased train tickets and Machu Picchu entry tickets through them. Be wary of discounts from uncertified tour companies as corners may be cut on safety, staff training, and customer support.