
Here's what you should know - if you are contemplating a trip there too.
1)  Go in the off season.  
~ this holds true for most places in my opinion.  Early May or September. 
2) Do not go during high season.  
~ ok, yes this was just mentioned.  But can't stress it enough.  
~ Unless you want to:  jockey for a seat on a bus, or have all the buses be sold out. Or wait 3 days for the next ferry because the one you wanted was sold out.  Etc. 
3) Greece has a lot of natural beauty.  If you are into that, go to Greece.  If you need air conditioning & don't like walking places, go to Las Vegas.  
4)   No 'to-do' list. 
We just showed up at a bus station, & got on a bus marked "Red Beach."  It was gorgeous. Like a place where a movie with Leonardo DiCaprio as an adventurer of some sort would be filmed.
The fun of discovery -  places to hike, eat, swim, photograph donkeys.
Leave your Fodor's at home.