Sorry - had you confused with someone else - looks like you may have plenty of time. Depending on your areas of interest there are many interesting places to visit all over Mexico. Below are web addresses where you may find more places you might like. We have been loving our visits to the World Heritage Sites, Colonial Cities and Pueblos Magicos as we travel all corners of Mexico. You probably can't visit them all but my suggestion to go down the center of Mexico and over to San Miguel de Allende would put you close to at least 4 very interesting places. Dolores Hidalgo, Guanajuato (the city) and Queretaro are all near San Miguel. There is an RV park near San Miguel and one near Guanajuato as well as one we have not stayed at in Queretaro. We often centrally locate in San Miguel and take our car to visit the other places - 20 - 30 miles away. You can research at lot more about all of these places online.
http://www.mexperience.com/guide/colonial
http://en.wikipedia.org/wiki/Pueblo_M%C3%A1gico
http://en.wikipedia.org/wiki/List_of_World_Heritage_Sites_in_Mexico
http://en.wikipedia.org/wiki/Real_de_Catorce
Though we do love beaches and spending time at the beach we have found that Mexico has so much more to offer we find it hard to stay in one place for very long.
