Termas Comanjilla

Comanjilla lies where geological fractures between the Sierra de Guanajuato and the Sierra de León bring sulphurous thermal water and vapor to the surface -- a 1909 geological survey of the area counted six active springs plus several smaller spouting sources and vapor emissions. Today that natural heat feeds Termas Comanjilla, a family balneario built around the springs with thermal pools, individual mineral-water tubs, a wave pool and slides, plus a temazcal steam bath and spa services. The water is intensely hot where it first emerges from the rock, and the site remains one of the Bajío region's longest-documented geothermal destinations.