I'm heading down that way from the middle of Sept into October. I'd love to get some tips about interesting geology to peer with ignorant eyes at.
I have a couple of pretty good dragon fly shots to get your comments on too. But you are off on your trip and I am heading to Portugal next week so I don't have time to send them for about 3 or so weeks.
Have fun.
PS: My rule: if you are a grandparent then you are older than I am -- no matter what the calendar says