Santorini is an island in Greece, in the southern Aegean Sea, member of the Cyclades group of islands. The island was the site of one of the largest volcanic eruptions in recorded history, which occurred about 3,600 years ago. Scientists believe that, during the eruption, lava created a huge hollow dome right at the center of the island which shattered due to the weight of the rocks, and sunk into the sea. Only parts of the region remained above the sea which is known today as the island of Santorini. These parts are Santorini, Thirasia and Aspronisi which embraced the water basin known as ‘Caldera’.
Cyclades Archipelago
The volcano is situated on a small island (Nea Kameni) from the Santorini archipelago, in the South Aegean Sea; 36024' North latitude and 25024' East longitude. The island is part of insular Greece (some 200 km away from the Greece mainland and 110 km north of Crete). Santorini (ancient name was Thira) is one of the most beautiful Greek islands. See the link below for more information.
During January it is Winter in every part of Greece and the whether is cold.
Santorini is not so big island...from north to south is about 35 kilometers and about one hour driving direct from Akrotiri village in south part of the island to the Village of Oia at northern side of Santorini.
"The Cyclades Hotel offers affordable accommodations on the Greek Isle of Santorini. Santorini, which is a part of the Cyclades islands, is about 120 miles from the the mainland of Greece."
The Name Of The Long Greek Island Is Mediterranean Sea
The capital city of the island of Corfu (part of Greece) is also named Corfu.
Corfu - Athens - Santorini (Olympic Airlines or Aegean Airlines) From Corfu you can fly to Athens and after from Athens to Santorini or better you can take the ship from Corfu to Igoumenitsa and after you drive to Athens (Piraeus port), then you can take the next ship Piraeus - Santorini. This is the long way but the best because you can see a big part from mainland Greece.
Greece
Chios is a island of Greece at the Aigio Pelagos.
Crete.
This island is Cyprus.
it is part of an island chain belonging to Greece.