Santorini, officially Thira, is a volcanic island in the southern Cyclades, famous for white villages perched on the cliffs of a flooded caldera. The island is only about 73 square kilometres, with some 15,000 permanent residents, yet it draws visitors from around the world for its sunsets, its wine and the remains of a Bronze Age town buried by one of the largest volcanic eruptions in human history.
The island has two faces. The western side is a curved wall of cliffs dropping steeply into the caldera, lined with the villages of Fira, Firostefani, Imerovigli and Oia. The gentler eastern and southern side slopes down to long beaches of dark volcanic sand at Kamari and Perissa. Where you stay shapes the trip: cave houses and suites with caldera views suit couples, while beach-side apartments and villas inland suit families and longer stays.
Fira, the island's main town, sits midway along the caldera rim and is the practical choice: the bus hub, restaurants, shops and the path down to the old port are all here. Firostefani and Imerovigli, a short walk north, are quieter and higher, with some of the widest caldera views. Oia, at the northern tip, is the most photographed village and the classic sunset spot, which also makes its lanes very crowded in summer evenings.
On the east coast, Kamari and Perissa have beachfront promenades, flatter streets and more space for the money, which suits families and anyone who would rather swim than climb stairs. Inland villages such as Pyrgos offer traditional houses, wineries nearby and a calmer local rhythm. Many caldera homes are reached by steps, so check access if you have heavy luggage or limited mobility.
Santorini is the largest piece of a ring of islands that formed through repeated cycles of volcanic building and collapse. The great Minoan eruption, about 3,600 years ago, emptied the magma chamber and left the sea-filled caldera that gives the island its shape; scientists still debate its exact date. Thirasia and Aspronisi are fragments of the same ring, while the dark islets of Palea Kameni and Nea Kameni rose in the centre of the caldera in later eruptions.
Boat trips from the old port below Fira cross to Nea Kameni, where a path climbs over its craters, and many continue to warm springs off Palea Kameni. On land, a walking path follows the rim from Fira through Firostefani and Imerovigli to Oia, past churches and the rock of Skaros, once crowned by a Venetian castle.
Near the village of Akrotiri lies a Bronze Age town that was buried in volcanic ash during the eruption of the 16th century BC, which preserved buildings standing more than one storey high and some of the finest frescoes of the Aegean world. Systematic excavation began in 1967 under Spyridon Marinatos and continued under Christos Doumas. Almost no valuables and no victims have been found, which suggests the inhabitants left in time. The site, often compared to Pompeii, is protected by a large roof, and many of its finds are in the Museum of Prehistoric Thera in Fira.
Ancient Thera, on the limestone ridge of Mesa Vouno above Kamari, is a later city founded by Dorian colonists from Sparta and used through Hellenistic and Roman times.
Santorini's beaches are shaped by the volcano: black, red and white sand or pebbles, often below steep cliffs. Dark sand absorbs the sun and gets very hot by midday, so bring beach shoes. Kamari, on the east coast, is a long organised beach with a promenade behind it, and Perissa and its neighbour Perivolos to the south continue for several kilometres along the same shore beneath the ridge of Mesa Vouno.
Red Beach, near the Akrotiri excavations, is a small cove beneath red cliffs; rockfalls happen there, so respect any closure signs and keep away from the cliff base. The caldera side has no sandy beaches, but boat trips stop for swims in coves and at the warm springs. The water stays clear and is usually warm enough for swimming from June to October.
After the Bronze Age eruption the island was resettled. Its everyday name, a contraction of Saint Irene, was already in use by the 12th century, and after the Fourth Crusade the island joined the Venetian-led Duchy of the Archipelago founded by Marco Sanudo. A powerful earthquake in July 1956 damaged a large share of the island's houses, and many villages were rebuilt in the decades that followed. The island sits on an active volcanic system that is closely monitored; an earthquake swarm in early 2025 led to a temporary state of emergency.
The volcanic soil supports vines trained low into basket shapes against the wind. Assyrtiko is the signature white grape, and Vinsanto is a sweet wine made from sun-dried grapes. Local dishes use fava from yellow split peas, small tomatoes and white aubergines.
Santorini International Airport (JTR) lies on the east coast north of Kamari, about 6 km from Fira, and flights from Athens take around 50 minutes. Ferries and fast boats from Piraeus and other islands arrive at Athinios, the main port on the caldera side south of Fira. Cruise passengers are tendered to Skala, the old port, and climb to Fira by cable car, on foot up the long stepped path, or by mule.
The central bus station in Fira has frequent buses to most villages and beaches. Taxis are limited in high season, so many visitors rent a car, scooter or quad for flexibility, though roads are narrow and parking in Fira and Oia is scarce. Water is scarce on the island and much of the supply comes from desalination, so short showers are appreciated.
Santorini has a hot, semi-arid climate with Mediterranean features: little rain, about 270 mm a year, mostly in winter, and long dry summers. The average annual temperature is around 19°C. In July and August the strong northerly meltemi wind often blows, which cools the cliffs but can make sea crossings rough.
The busiest months are June to September, when Oia's sunset and the caldera paths are crowded and cruise calls are frequent. April, May and October are calmer, with mild temperatures that suit walking the rim, and the sea is usually swimmable from June. Winter is quiet and windy; many hotels, restaurants and shops close from roughly November to March, so a home with a kitchen is useful for off-season stays.
Fira is more central and practical, with the bus station, restaurants and easy links to the whole island. Oia is quieter by day and famous for its sunset, but it sits at the northern tip and gets very crowded in the evening. Imerovigli, between the two, offers caldera views with more calm.
May, June, September and early October offer warm weather and swimmable sea with fewer crowds than July and August. Spring and autumn are best for walking the caldera path. Many businesses close in winter, roughly from November to March.
Three to four days cover the caldera villages, Akrotiri, a boat trip to the volcano and a beach day. With a week you can slow down, visit wineries, walk from Fira to Oia and combine a caldera stay with a few days by the sea at Kamari or Perissa.
Yes, but they are volcanic: black or red sand and pebbles rather than white sand. Kamari and Perissa on the east coast are long, organised beaches with calm water on most days. Red Beach is striking but small and subject to rockfalls, so follow any warning signs.
Ferries arrive at Athinios, the main port, where buses, taxis and pre-arranged transfers climb the switchback road to Fira. Cruise passengers land at Skala, the old port directly below Fira, and go up by cable car, on foot or by mule.
Not necessarily. Buses from Fira reach most villages and beaches, and Fira, Firostefani and Imerovigli are linked by footpaths. A rental car or scooter helps for wineries, Akrotiri and Red Beach, or if you stay in an inland village, but parking in Fira and Oia is difficult.
Yes. As everywhere in Greece, private homes let for short stays must be entered in the Short-Term Stay Property Registry of the tax authority AADE, and the registry number, called the AMA, has to appear clearly on each listing. Licensed tourist accommodation shows its own licence number instead.
Akrotiri is a Bronze Age town buried in volcanic ash during the great eruption of the 16th century BC. Excavated since 1967, it preserves multi-storey buildings and remarkable frescoes. It lies near the modern village of Akrotiri in the south-west and is covered by a protective roof.
Researched and written with AI assistance, then fact-checked against the sources below. Last checked .