The high Andean starry nights, combined with the cold Atacama winds, can chill the unprepared tourist to the bone. Happily, however, these mountains are volcanic, and pour forth the planet's heat into a series of steaming pools, the Puritama Hot Springs (Termas Baños de Puritama).
The name "puritama" simply means "hot water" in an ancient, pre-Inca tongue, suggesting that these medicinal springs have been used for millennia. With high concentrations of relaxing lithium and minerals accorded all sorts of health benefits, they are guaranteed to mellow you out. Temperatures hover around 33°C (91°F), so they aren't ridiculously hot, making daytime visits a treat.
Though most pools have been left in a relatively natural state, there are changing rooms, eateries, campsites, trails, handicrafts vendors and other improvements all around.