The Spa
The waters originate from the melting snows of the Popocatepetl and Ixtaccihuatl volcanoes. It is probable that the spring was visited since antiquity by the Olmecs, the Teotihuacans, the Chalca tribe, the Tlahuica tribe, and the Aztecs. All these resided in this area at one time or another.
The first chemical analysis of the waters were made in the late 19th century and the current spa premises of Agua Hedionda were built by the Mexican government in 1928.
Besides its waters and the weather (sub-tropical), the outlay of Agua Hedionda makes it a popular tourist attraction: the grounds are surrounded by ancient trees and gardens, where all types of birds can be seen and heard. There are 2 large swimming pools (240 x 60 feet (18 m) and 120 x 60 feet) in which the water constantly flows, 8 small pools that can be rented for private use, a restaurant, a convenience store, and locked cubicles for the changing of clothes. It is open 365 days a year.
Due to the purity, transparency, and amount of chemical elements in its waters, Agua Hedionda is internationally recognized as one of the top mineral spas. The water is not warm (about 80-82^ F) and the spring's output surpasses 200 gallons per second.
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