You'll need a bit of time to explore Meteora and you can stay overnight at Kalambaka, a modern town since the old one was burned in World War II, or smaller Kastraki closer to the rock. There are guided tours from Athens or buses and trains run to Kalambaka. From Kalambaka there are buses to Meteora.
Be warned, there can be many steps to climb and there is a dress code appropriate to religious buildings.
Bus ride to Meteora and a stop in Delphi to see the ruins there. Excellent hotel service and stay. The food was also very good. The rock formations in Meteora and the monasteries were well worth the trip.
Review by Koon Hoi W, October 2012
Doing what: 4-Day Classical Greece Tour: Epidaurus, Mycenae, Olympia, Delphi, Meteora
I loved the trip. We had a very knowledgeable and capable tour guide named Mikaela and she was extremely informative and pretty much planned our trip to perfection. I have traveled a lot and joined many tours and this is one of the best I have ever been on in terms of organization. Every stop was great, even though by Delphi I have seen a lot of ruins and was starting to feel I had enough history. But the best stop is Meteora - some of the best scenery I have seen in my lifetime. The Amalia hotels are dated, but functional for the most part. I only wished we have more options for lunch then being pressured into going into their 'recommended restaurants', which are somewhat expensive for the quality of the food. All in all I'd recommend this tour in a heartbeat.
A very well-coordinated spiritual experience. The tour guide spoke English very well. Also, the stop to Delphi on the first day was a wonderful way to educate travellers about how religion started in Ancient Greece and how Greeks before heading to Meteora and learning about Orthodoxy today.