Sure - take salty almonds and a second water bottle just in case yours leaks. There are very few fountains but if you need water urgently ask at any house or even flag down a car. People in this region know how dangerous it can be to run out.
You will see many pigs, goats, dogs, white towns, tons of cork oaks, and you will talk about ham a lot. I had conversations of more than 1 hour about ham. There is a very serious municipal museum of ham and be sure to read all the displays diligently so you can have more in depth ham conversations. You cannot know too much about ham. Be sure to read up the difference between Iberico and Serrano before you go, or you may make a social gaffe.