The Spa of Agua Hedionda (Spanish: Balneario de Agua Hedionda) is a mineral spring and day spa located in the city of Cuautla, in the state of Morelos, Mexico, about 60 miles (97 km) south of Mexico City.
Agua Hedionda means in Spanish "foul-smelling water", and is also the name of the residential neighborhood around the spa, with approximately 10,000 inhabitants.
Chemical analysis of the waters was made in the late 19th century and the current spa premises of Agua Hedionda were built by the Mexican government in 1928.
Agua Hedionda is a popular tourist attraction with ancient trees and gardens, with many types of birds.
[1] (PPM= parts per million) (*source: National University of Mexico[citation needed])