I would like to post some enthusiasm for Granada, since other folks' responses seem so lukewarm. We were in Granada for 2 nights & wished we could stay longer. Go see the Alhambra at night as well as during the day; they are totally different experiences! Also we loved the farmer's market in Granada. & you must take your kids to the ice cream shop Los Italianos! They will love it!

Have fun.

How old are your kids? I did a 6+ week trip with two kids this summer and can give you lots of suggestions!!