Considering your interests (great food, hiking, beaches, nightlife unimportant) then Naxos should definitely be your other island. (And Naxos has many daily ferry connections with both Santorini and Athens.) Also, Athens needs at least one full day to explore so you should drop any thoughts about Delphi or Nafplio. Also, I would look into flights from Athens to Santorini on your night of arrival. If you could get to Santorini that night (and move your day in Athens to the end of your trip) you’d almost gain an entire day and could spend two nights on Naxos.
Where to stay in Andros: Food stylist Allegra Pomilio hosts intimate cooking retreats at Melisses, her family’s elegant villa overlooking the submerged ancient city of Paleopolis. Ktima Lemonies, an elegant estate surrounded by lemon and olive groves, is less than a mile from Hora but feels light years away. At Onar, an organic farm with a smattering of cottages overlooking Achla beach, you really are miles from anywhere.
My boyfriend and I will be traveling to Greece on August 1-11th. We have 10 days. Is this a feasible itinerary for a couple in their early 30s who want beach, relaxation, good food, boating, and some history? Fly into Athens have one full day there then fly to Naxos for a day and a half, Milos for 3 nights, then Santorini for 3 nights, then back to Athens for our flight? We chose Milos over Naxos at first, but after reading your blog it seems the beaches in Naxos may be better?
With the exception of Elounda - a pocket of bling popular with oligarchs - the north-east coast is scarred by over-development. Instead head south, where there are miles of empty sand dunes, sprinkled with simple yoga retreats such as Yoga Rocks at Triopetra and Yoga Plus at Agios Pavlos. Or take a back-to-nature break with Wild Fitness at Milia, a 17th-centruy hamlet powered entirely by solar energy. Time slows almost to a standstill in the mountain villages, where locals with formidable whiskers welcome you with shots of raki (Cretan grappa) for breakfast and celebrate saints' days with a volley of gunshots. Even the road signs are peppered with bullet holes.
Everyone knows the Venus de Milo (which has stood in the Louvre since the 19th century). Until recently, very few had heard of Milos, the volcanic island where Aphrodite’s graceful likeness was discovered. Those in the know jealously guard their treasured island, and especially its 70 (or more) beaches — surely the most diverse and dramatic coastline of all the Greek Islands.
Krk is a large island and it has many towns and villages to explore, as well as fun campgrounds and resorts to stay at. Connected to the Croatian mainland by a bridge, this is a very accessible island. Krk has varying landscapes, with an arid feel to the north, a lush green side to the south, full of bays and beaches, and the interior is hilly and rocky. If you want to enjoy wildlife then head into the woods on one of the many walking trails and see what you can spot!
Since airline reservation requests are often made by city-pair (such as "show me flights from Chicago to Düsseldorf"), an airline that can codeshare with another airline for a variety of routes might be able to be listed as indeed offering a Chicago–Düsseldorf flight. The passenger is advised however, that airline no. 1 operates the flight from say Chicago to Amsterdam, and airline no. 2 operates the continuing flight (on a different airplane, sometimes from another terminal) to Düsseldorf. Thus the primary rationale for code sharing is to expand one's service offerings in city-pair terms to increase sales.