If you happen to be visiting Las Alpujarras in the Sierra Nevada mountain range, you must stop by the Fuente Agria (Fountain of Sourness). The crystal clear mineral waters flow through the Sierra Nevada and come out here for a quick taste. Beware at the fountain, there are gradual increases in terms of mineral level. It is recommended to drink from left to right, but I actually found the fountain on the very right to be most tasteless. The one on the left almost tastes like blood due to the high concentration of minerals. If you are ever curious what goes into those "Sierra Nevada" labeled spring water, it is great to visit this place and see the real thing. Traditionally, this water is used by the mountain villagers in las Alpujarras for medicinal purposes due to the high concentration of minerals in the water. Whether it works or not, beats me! read more