I am going to be in Valencia in late September on a cruise with a stop in Valencia. Only a limited amount of time with the ship in port from 8:00 am to 6:00 pm. I like to shoot architecture and the City of Arts and Science looks like an absolute must. Because of the limited time (no time for sunrise or twilight shooting) I am thinking of hiring either a photo guide or a general guide to get me to the best shooting locations quickly. Is this an efficient approach? Any idea of how to find a guide and what I might expect to pay? Also looking for suggestions on another "must see" venue in the city.