If you wish to tour Guanajuato state, I can show you the many sites of Guanajuato City as well as other cities outside of San Miguel de Allende. I can take you on a day trip to the nearby Sanctuary of Jesús Nazareno de Atotonilco which is also a UNESCO World Heritage Site.
El Charco del Ingenio is an ecological reserve and botanical garden located right outside of SMA. There are several hot springs nearby where you can enjoy the warm mineral waters. There are fascinating archeological sites nearby including the Cañada de la Virgen which features Toltec pyramids used for ancient astronomy.
I can take you on a day trip to the neighboring city of Querétaro which is about an hour away. The state capitol of Guanajuato (also a UNESCO World Heritage Site) is not to be missed, and is only 1 ½ hours from San Miguel. I can also take you to visit the historic town of Delores Hildago which is about 45 minutes away and known for its exquisite ceramics.