There is too much free time and not much to do in the city centers for more than a few hours. It would have been nice to go some other places beside the city centers. Regarding our guide, Patricia, she was very nice and friendly and we enjoyed her company. HOWEVER her English accent was heavily accented that I could not understand more than 50 of what she was saying. It is not her fault, but still we paid for an English guide and I think I should have gotten a guide who is more understandable.