Oia, a charming Cycladic village in Santorini, is a must-visit destination for its stunning beauty and picturesque alleys. From watching the sunset at the Venetian castle of Agios Nikolaos to exploring the hidden gems like the 3 blue dome churches and Captain houses in the Sidera area, there's plenty to see and do. Don't miss out on dining by the sea at Ammoudi Bay or taking a dip in the crystal-clear waters of Armeni Bay. With boutique shops, art galleries, and delicious eateries lining the main pathway, Oia offers a perfect blend of culture, history, and relaxation for visitors to enjoy.