Santorini has the postcard views. Therasia has the feeling that you have discovered something.
Just across the caldera, this tiny volcanic island is beginning to attract the kind of attention that usually arrives years after the first adventurous travelers have found it. In August 2026, National Geographic Traveller called Therasia “Greece’s best-kept secret”: a bold claim for an island that sits only 10 minutes from Oia by boat.
That timing matters. According to KAYAK’s 2026 travel trends report, 69% of Gen Z travelers and 66% of Millennials want to visit places they have never been before. If that sounds like you, the real question may not be whether to visit Santorini or Therasia. It may be how to experience both before Therasia’s quiet charm becomes the next Greek island trend.
The short answer: Santorini for the icons, Therasia for the escape
Santorini is famous for a reason. Its cliffside villages, blue-domed churches, volcanic beaches, wineries and legendary sunsets are spectacular. It also offers far more hotels, restaurants, tours, nightlife and transport connections than its smaller neighbor.
Therasia is Santorini’s quieter mirror. The islands share the same volcanic history and caldera waters, but the experience is dramatically different. Therasia has around 168 permanent inhabitants, a handful of villages, limited accommodation and a slower rhythm that has largely escaped mass tourism.
| Santorini | Therasia | |
|---|---|---|
| Best for | First visits, nightlife, iconic views and variety | Slow travel, hiking, local life and solitude |
| Crowds | Busy, especially June–September and around Oia sunset | Light, with midday visitors around the ports |
| Accommodation | Everything from hostels to luxury cave suites | A small number of guesthouses, villas and boutique stays |
| Cost | Generally more expensive, especially on the caldera rim | Usually lower for food and simple stays |
| Getting there | Direct flights and ferries from Athens and other islands | Boat access only, usually via Santorini |
| Ideal trip length | Three to five nights | One to three nights, or longer if you want to fully disconnect |
Getting there: the crossing is part of the adventure
Most travelers will arrive in Santorini by plane or ferry, then make their way to Therasia from there.
The quickest connection is from Ammoudi Bay, below Oia. A small local sea bus crosses to Riva, Therasia’s main port, in roughly 10 minutes. The route is short, but the change in atmosphere is immediate: one moment you are looking up at Oia’s packed whitewashed lanes; the next, you are stepping onto a quiet island road.
According to the current Therasia ferry schedule, local services also connect Therasia with Santorini’s Fira and Athinios ports on selected days. A larger ferry from Athinios, Santorini’s main port, takes approximately 25–45 minutes and is the practical option if you are bringing a car or significant luggage.
There are also organized boat excursions from Santorini that combine Therasia with the volcanic islands and hot springs. These can cost roughly €30–€60 for a standard day trip, with more elaborate cruises costing considerably more. They are convenient, but a brief stop in Korfos is not the same as staying overnight.
Important: ferry times and prices can change with season, weather and operator. Check the schedule shortly before traveling and ask your accommodation for the latest local information. Therasia is charming partly because it is not over-engineered for tourism: so leave room for flexibility.
What to do on Santorini
Santorini is the better choice if your ideal trip includes a full itinerary.
Start with the classic caldera walk from Fira to Oia, one of the most rewarding hikes in the Cyclades. Visit Oia early in the morning before the day-trippers arrive, then explore the village’s old lanes and sea captain mansions. For a quieter base, consider Imerovigli, while Fira is the most practical option for transport, restaurants and nightlife.
Beyond the caldera, Santorini offers:
- A boat trip to the volcanic island of Nea Kameni and the hot springs
- The archaeological site of Akrotiri
- Wine tastings featuring Assyrtiko and other volcanic-soil wines
- Black-sand beaches at Perissa and Kamari
- Red Beach, with appropriate caution around unstable cliffs
- Sunset viewpoints away from Oia’s busiest terraces
Santorini rewards first-time visitors who want to see a lot. The trade-off is that its most famous experiences are no longer hidden. In high season, sunset viewpoints, caldera paths and popular restaurants can feel more like a carefully managed spectacle than a spontaneous island discovery.
What to do on Therasia
Therasia is not a smaller version of Santorini. It is a different kind of trip.
The main settlement, Manolas, sits high above the caldera. From Riva or Korfos, reaching it involves a steep climb: around 270 to 280 stone steps from Korfos. The reward is a maze of whitewashed lanes, cave houses, small churches and dramatic views back toward Santorini.
Allow yourself time to explore without a checklist. The island’s highlights include:
- Walking through Manolas and its cliffside lanes
- Hiking between Manolas, Potamos and Agrilia
- Exploring the abandoned cave-house settlement of Agrilia
- Visiting the island’s churches and the Monastery of Koimissis Theotokou
- Swimming from black-pebble stretches near Riva and Korfos
- Eating fresh fish, Greek salads, fava and grilled dishes in family-run tavernas
- Watching the caldera shift from bright blue to copper at sunset
For a deeper look at the island on two wheels or with a local guide, Explore Thirasia offers walking tours, e-bike excursions and other ways to reach places most day-trippers miss.
Therasia’s beaches are not its main attraction. You will not find long, organized strips of sunbeds and beach clubs. Instead, expect rocky swimming spots, clear water and a quieter relationship with the sea. Bring footwear suitable for uneven ground and do not rely on finding every convenience once you arrive.
Where to stay
Santorini gives you the widest choice.
- Oia: Best for iconic architecture and sunset views, but usually the most expensive and crowded.
- Fira: The most convenient base for buses, restaurants, nightlife and excursions.
- Imerovigli: A quieter caldera setting with many upscale properties.
- Perissa or Kamari: Better for beach access and potentially lower rates than the caldera villages.
For ideas and inspiration, see the Awesome Places Santorini guide.
Therasia has a much smaller accommodation scene, which is precisely why you should book early. Stay in or near Manolas for cliffside views and access to walking routes, or near Riva for easier ferry access.
The island’s standout option is Santa Irini Retreat, a boutique stay in a restored 19th-century property near Riva. National Geographic Traveller reports rates from around €280 per night for bed and breakfast, with the property open from May to October. Other options include small guesthouses, traditional homes and simple rooms, but availability is limited.
Which island is cheaper?
Santorini is one of Greece’s pricier destinations, especially if you want a caldera-view room in Oia or Imerovigli. Restaurants, cocktails, private cruises and sunset experiences can quickly raise your daily budget. You can reduce costs by staying near the beaches, eating away from the caldera and using public buses.
Therasia is generally gentler on the wallet once you arrive. Simple accommodation and local tavernas can cost substantially less than comparable options in Santorini, although the island’s limited supply means premium boutique stays are not necessarily cheap.
The boat crossing is usually inexpensive compared with a full-day excursion. Published visitor information has placed local fares anywhere from around €1 to a few euros each way, depending on the route and service. Treat those figures as a guide rather than a guarantee, and carry cash in case card payments are unavailable.
One useful splurge is a visit to Mikra Thira, Therasia’s first winery. Its volcanic terroir is closely related to Santorini’s, and tastings focus on local expressions of Assyrtiko and other Greek varieties.
The smartest way to combine both
For a five- to seven-night trip, spend three or four nights on Santorini first. Walk the caldera, visit Akrotiri, book a volcanic cruise and enjoy at least one sunset in Oia: ideally early or late in the season when the crowds are less intense.
Then move to Therasia for one or two nights. Stay in Manolas or near Riva, hike without rushing, eat locally and watch Santorini’s lights appear across the water after the day boats have left.
That final detail is the secret: Therasia feels most different in the morning and evening. At midday, excursion boats can bring a temporary wave of visitors to Korfos and Riva. Overnight guests get the island after the crowds disappear.
So, Santorini or Therasia?
Choose Santorini if this is your first Greek island trip, you want famous landmarks, a wide range of restaurants and activities, or you prefer a destination that is easy to navigate.
Choose Therasia if you want quiet paths, village life, volcanic landscapes and the thrill of arriving somewhere that still feels personal. It is less polished, less convenient and far less predictable: and that is exactly its appeal.
Our insider verdict? Visit both, but save your final nights for Therasia. Santorini delivers the icons. Therasia delivers the story you will still be telling after the crowds have gone home.
The secret is out. For now, there is still time to experience it before everyone else catches the boat.
Comments are closed, but trackbacks and pingbacks are open.