Oia is one of the towns on the island of Santorini. Oia and its surrounding nature have an area of 19 km2. Today, hundreds of people flock just to see the spectacular sunset from the city. The population of the settlement is about 800 people. It is located on volcanic rock. On the narrow streets there are many shops - luxury goldsmiths' studios, souvenir shops with traditional Greek products, as well as numerous cafes and taverns. The town has become a visiting card of the island with its typical blue-domed churches.