The Tatio geysers in the high Atacama Desert at dawn, with rising crescent moon. Atacama Desert, Chile. May 2011. We took a four hour bus ride from San Pedro de Atacama to get to this site before dawn, and it was worth it. If you go, I highly suggest bringing lots of warm clothes. The temperature difference between the floor and the plateau of the Atacama Desert, and day and night, can be about 60 degrees C. It was damn cold up here. I guestimated -30C. So glad I remembered my gloves.