You can take a local city bus to the small town of Jiutepec about 20 minutes south of Cuernavaca and from there a short taxi ride to the Hotel Camino Real Sumiya which originally was Barbara Hutton's home with her 7th (and last) husband. It is beautiful and we had a nice modestly priced breakfast and walked around. They have tours on weekends. It took 6 years to build concluding in 1959, an interesting date as similar time to the Robert Brady Museum in the city. It is a nice break from the city core and can be done in a morning.