Featuring over 80 geysers, El Tatio Geyser field in northern Chile is the third largest in the world after Yellowstone and Dolina Giezerov in Russia.
At an altitude of 4,300 meters (14,100 feet), it is also one of the highest geyser fields in the world.
Getting there from San Pedro de Atacama is easy, if you're willing to accept a 4 AM departure.
The Tatio geysers are most active around sunrise, therefore tour vans leave San Pedro super early in order to arrive at Parque Geotermico Geyser del Tatio, near the Bolivian border, by 7 AM.
It's only 90km away, but the roads are bad, and the vans are driving in the pitch black.
Despite being in the desert, the lack of sunlight, combined with the high altitude ensure freezing cold temperatures.
Seriously, when you first arrive, you'll be standing around in the frigid cold, barely able to see anything until the sun begins to rise.
Dress warmly, but in layers, as you'll want to peel a few off by midday, as your tour makes its way back to San Pedro.
I paid $29 for the tour, which included guide, transportation, and a light breakfast. In addition, there was a $10 park entrance fee.