Cool. Enjoy your trip.
I spend a month backpacking through some of those islands -- Crete, Rhodes, Mykonos, Santorini etc -- during the summer of my freshmen/sophomore year at Bloomington.
We basically caught whichever ferry we fancied. Couldn't read the language which was challenging. Landed in jail for a beer related offense. The cop asked me what I was majoring in, I said business and his reply was ' this is how you do business?' I chuckled and then he threw me in some dingy jail with a couple of gypsies! (Midnight Express did cross my mind. But there is only so long one can keep your chest and arm muscles pumped up!)
Anyway, the biggest lesson I learned from that trip -- I was catching another ferry to some godforsaken island one morning at like 6am. (Some once a day or every other day type service.)
I could barely keep my eyes open but at the front of the queue to the gangway to the ferry was an 'old' European couple, must have been like 75y.o.
All upright with their backpacks; fresh, sprightly and ready to go. I still have that vision in my head -- they were so much more energetic than us, two college student of what 19? I spoke to them during that bumpy arduous ferry ride later. All positive about life.
They have since been always my yardstick in terms of what to expect for traveling, outlook on life etc.
