I am traveling to Greece with my brothers family in June. We will be meeting my grandfathers family on the Peloponnese peninsula and then traveling further around Greece. My brother and family are going to the islands but I am hoping to go to Meteora before joining them. My questions is what is the best way to travel to Meteora and then back to Athens before joining them on them on Santorini. I am thinking of renting a car in Kalamata, making a leisurely drive to the Agios Vasileios area, staying the night, then a second leisurely drive to Kalambaka. After a couple days of touring I was thinking of a train to Athens to make my flight to Santorini. Is driving a good idea or is public transportation better/safer? Would a different route be better? Any suggestions for solo travel (I am a 60 year old average fitness male)? I will be staying at Airbnb's the trip (1 month) but am open to suggestions as to sites and food. I thank you in advance for any assistance you may provide.