My usual day in Greece is getting up usually later than my normal time back home, eat breakfast (food I bought at local markets) and get in the rental car and hit the road to explore.
I have an itinerary I made of "must see places" and "would like to see places" and have routes mapped out.
Once I get somewhere I'll get out of the car and explore either a village, a archeological/historic site, possibly have lunch somewhere and head back usually late afternoon.
I'll have a late lunch, again from food bought at markets, sit on the balcony or terrace with a glass of wine and relax for the rest of the afternoon.
My dinner time is pretty much what time I eat back home which tends to be much earlier than when Greeks eat so I usually have the taverna to myself.
If there is something on the menu or have an opportunity ask the owner if I can see what's cooking I haven't eaten before I'll try it. I am an adventurous eater so will try something I've never had or even heard of before.
After dinner I'll walk around the town/village, maybe do a little shopping and head back to the studio early evening.
My days of staying out late or partying are long past and when getting back I'll email family and friends to let them know I'm OK and having a great time.
Nothing wild, over the top, spending lots of money or hanging out in a bar just a great day to spend one of many days in Greece.
Of course back in Athens things are much more lively and I'll stay out a little later at night since there's so much going on in the city but usually back to the room before it gets too wild.