Anyone been there? Thoughts, recommendations?

I may have an opportunity in the next few years to vacation there, and I was looking for some input. How difficult is it to travel to the rest of Spain from this section? Is a day or overnight trip to Portugal reasonable to expect?

And finally, the reason I'm posting on COTH- does anyone know of any good riding locations there? Preferably somewhere that does trail rides geared at inexperienced equestrians (vacation trail riding is the extent of my family's riding experience) that last a few hours-all day (overnight would probably be too much).

Basically, I'd just like to know as much as possible about this location so I can dream up a nice vacation that will probably never actually happen!