Tlaco, pronounced "tla-co", silmilar to "taco", is an ecological water park located two hours north of Mexico City in Tlacolapilco, Hidalgo. Designed to bond with nature, Tlaco Water Park is a paradise that offers a unique experience. Its sole source of water is a thermal underground river that is crystalline, pure & has medicinal properties. The thermal spring averages 104 degress Farenheit. The park is open year round.