There are over 3000 salt pools carved into the mountain side, being filled daily by a little stream of water. (actionperutreks.com)
FACILITIES • 4 thermal pools • 1 sea salt pool • 1 whirlpool with fresh water • Salidarium • Mud packs • Treatments for face and body • Revolutionary diet and detox medical programmes (travellermade.com)
«Recovering lithium from natural salt pools: purity up to 99.9 per cent.» (sciencedaily.com)