I thought ferry tickets were something you could buy at the port and was checking the departure times for the ferry from Heraklion to Santorini on July 10th. They are showing no seats available. Is there another way to go or are there seats still available for purchase at the ferry? Sorry, I have been reading the threads and was under the impression you do not have to worry about booking ferries and now I am worried.

July is the busiest time of year. That particular ferry is small and fills up fast when the demand is at its highest. You'll have to choose another day or fly direct on www.skyexpress.gr

This website has all the options for travel from Crete to Santorini:
http://www.cretetravel.com/To_and_fr..._Santorini.htm

Thank you for the information.

It looks like SeaJets is taking up the slack and you can take their MegaJet on July 10.

http://www.seajets.gr/en

I looked at SeaJets but when I enter July 10th it responds with July 9th,am I missing something?

Apparently Sea Jets doesn't make this run on Saturdays.