I will be visiting Crete at the beginning of June. I have one full day in the city of Heraklion, and I would like to see Knossos (yes, I realize it's reconstructed and touristy, but it would be silly to be so close and not see it). I know I don't have time to see all the other sites to the east, but is there anything else I'd have time for other than Knossos in a day? Should I just plan on visiting around the city itself for the remainder of the time? And does anyone have any advice on whether it's better to visit Knossos early and then tour the city or vice versa?