El Tatio is ringed by volcanoes and fed by over 80 gurgling geysers and a hundred gassy fumaroles. Contrary to popular opinion it is not the world's largest geyser field, but the third largest. The best time to see the geysers is 06:00, so make sure you wipe the sleep from your eyes if you want experience the awesome spectacle.
Watch your step - in some places, visitors have fallen through the thin crust into underlying pools of scalding water and suffered severe burns. Dress in layers: it's toe-numbingly cold at sunbreak but you'll bake in the van on the way back down.
