Santorini is one of the world’s most visited islands, and for good reason — the caldera views, the Assyrtiko wine, the Bronze Age ruins at Akrotiri are genuinely extraordinary. But Santorini is also expensive, crowded in July and August, and small enough that 3-4 days covers everything it offers. The islands within 40-120 minutes by ferry are among the most rewarding in the entire Cyclades — and most Santorini visitors never reach them, leaving on a flight or ferry to Athens without knowing what was available nearby. This guide covers every island accessible from Santorini as a day trip or short extension, with honest assessments of what each one actually delivers.
For the complete Cyclades island-hopping picture, our Greek ferry guide covers every route and operator. For which Greek islands are genuinely worth visiting in the full context, our best Greek islands guide makes the comparison across all destinations. For the Santorini base experience you’re extending from, our complete Santorini guide covers the island in full.
Ios: Party Energy and Excellent Beaches (40-90 minutes)
Ios is the most visited island from Santorini and the most obvious extension for travelers under 35 who want to continue the Cyclades experience with more beach time and more nightlife energy. The ferry from Santorini to Ios takes 40-90 minutes depending on the service — book through Ferryscanner for current schedules and prices. What you find on Ios: Mylopotas beach (one of the finest sandy beaches in the Cyclades), a beautiful whitewashed Chora with windmills and 360-degree views, the excellent Manganari beach accessible by boat from the port, and a bar street that operates at genuine intensity from July through August.
As a day trip from Santorini: take the early morning ferry (7am departure), spend the day at Mylopotas beach or exploring Chora, return on the afternoon ferry. This works well but you spend more time in transit than on the island — an overnight or 2-night stay is significantly better value for what Ios offers. Book accommodation through Booking.com. For the complete Ios guide, see our Ios island guide.
Folegandros: The Most Beautiful Undiscovered Cyclades Island
Folegandros is the answer to the question “what does the Cyclades look like before mass tourism arrives?” A small island (32 square kilometers) 2 hours from Santorini by ferry, with one of the most dramatically situated Choras in the entire archipelago — the village perched on a cliff 200 meters above the sea, with the church of Panagia visible from the ferry approaching the harbor as a white landmark against the dark rock. Folegandros has excellent beaches (Angali, Agios Nikolaos), an authentic local population that outnumbers tourists for most of the year, and an atmosphere of genuine Cycladic character that the more famous islands have largely sold.
The walk from Folegandros Town up to the Panagia church — a steep path through terraced hillside with extraordinary views in every direction — is one of the finest short walks in the Cyclades. The village itself (Chora) is genuinely beautiful: three connected squares, Venetian-influenced architecture in the kastro district, and a social life that continues in the evening without being organized for tourism. Folegandros has no party scene, limited water sports, and modest beach facilities — it is purely itself, which is exactly what makes it worth the ferry trip. Book through Booking.com well in advance — the island has limited accommodation and the best properties fill months ahead for July-August.
Anafi: The End of the World
Anafi is the most remote island accessible from Santorini — a tiny volcanic island 1.5 hours east with a permanent population of approximately 300 people, one village, three beaches, and no tourist infrastructure worth speaking of. It is the destination for travelers who want to experience what Greek island life was before the ferry routes brought tourists, who want complete quiet and simplicity, and who are willing to accept that the ferry service is infrequent (2-3 times per week depending on season) and the return journey requires planning.
What Anafi offers: Kalamos beach, one of the quietest and most beautiful in the southern Cyclades; the monastery of Panagia Kalamiotissa on a dramatic rock at the island’s eastern end, accessible via a 2-hour walk through landscape that hasn’t changed in centuries; and the specific pleasure of being somewhere genuinely off the tourist map. Not for everyone. Exactly right for the traveler who finds Santorini’s crowds overwhelming and wants the opposite experience nearby. Check current ferry schedules on Ferryscanner — service to Anafi is limited and advance planning is essential.
Naxos: The Best Island for an Extended Stay
Naxos is 2-2.5 hours from Santorini by ferry and the most complete Cyclades island experience available — if you’re extending your Cyclades trip beyond Santorini and have flexibility on direction, Naxos deserves serious consideration. The beaches of the western coast (Plaka, Agios Prokopios, Agia Anna) are the finest in the Cyclades — 8km of fine white sand, the best beach swimming in the archipelago. The Portara — a massive marble gateway from an unfinished 6th-century BC temple standing alone on the harbor promontory — is one of those Greek images that becomes more moving in person than in photographs. The mountain villages of the interior (Halki, Apiranthos, Koronos) preserve Byzantine and Venetian-era architecture alongside living craft traditions. And prices are 30-40% lower than Santorini for equivalent quality.
For a week-long Cyclades trip, the optimal structure is: 3-4 nights Santorini + 3-4 nights Naxos, with a day trip to Folegandros or Ios from one base. This gives you the iconic caldera experience and a genuinely complete Cyclades immersion at manageable cost. See our complete Naxos guide for everything the island offers. Book ferries between Santorini and Naxos through Ferryscanner.
Milos: The Most Visually Extraordinary Island
Milos is 2-3 hours from Santorini and the island that most consistently amazes visitors who come expecting another Cyclades experience and find something completely different. A volcanic island with geological variety so extreme it seems digitally enhanced: Sarakiniko beach’s white pumice rock formations dropping to turquoise water, the Kleftiko sea caves accessible only by boat, the fishing village of Klima with colorful syrmata (boathouses) reflected in still morning water, and a coastline of 70+ beaches in remarkable variety. Milos remains more authentic than Santorini and Mykonos — genuinely Greek in a way those islands haven’t been for years.
As a 2-3 day extension from Santorini, Milos is the best single choice for travelers who want more beach exploration and visual drama without the crowds and prices of the most famous destinations. Book accommodation through Booking.com in Adamas (the port) or Pollonia (northern village) for the best base options. Book boat tours to the Kleftiko caves through GetYourGuide — the sea cave experience is the island’s highlight and significantly better with a knowledgeable local guide. See our complete Milos guide for the full picture.
Thirassia: Santorini’s Quiet Neighbor
Thirassia is the crescent island visible across the caldera from Santorini’s western cliffs — the other surviving arc of the original volcanic island that exploded approximately 3,600 years ago to create the caldera. A ferry from Santorini’s Athinios port takes 20-30 minutes; small boats also run from Ammoudi bay below Oia. Thirassia has one main village (Manolas), a handful of tavernas, a few rooms to rent, and none of Santorini’s tourist infrastructure. The caldera views from Thirassia looking back at Santorini are among the finest available — you see the famous white villages from across the water, with a perspective impossible from within Santorini itself. A half-day trip from Santorini gives you this perspective, a simple lunch in Manolas, and a complete respite from Santorini’s crowds.
Thirasia and the Caldera Islands: Santorini’s Immediate Neighbors
Within the caldera itself, two small islands are accessible as half-day trips without leaving the volcanic landscape that makes Santorini distinctive. Thirasia (covered above) is the most substantial — a genuinely inhabited island with permanent residents, tavernas, and views back at Santorini that no point on Santorini itself can provide. Nea Kameni is the active volcanic island at the center of the caldera — accessible by tour boat from Fira’s old port — where visitors can walk on the summit of an active volcano, smell the sulfur vents, and touch the warm dark rock that emerged from the sea in eruptions as recent as 1950. The combination of Nea Kameni (volcanic walk) + hot springs at Palea Kameni (swimming in warm reddish-orange thermal water) + Thirasia is the standard caldera tour offered by most operators — typically 4-5 hours, bookable through GetYourGuide or Viator. Check current reviews on TripAdvisor for the best operators before booking.
The Crete Option: Extending South
From Santorini, Crete is 2.5-3 hours south by high-speed ferry — the largest and most diverse Greek island, and the one that most rewards a dedicated visit rather than a day trip. If your Greece itinerary has flexibility and you’ve done the main Cyclades islands, adding 4-5 days in Crete from a Santorini base creates one of the finest Greece trips possible: iconic caldera views + the most complete Greek island experience + one of the world’s great archaeological sites (Knossos) + extraordinary food culture + the finest Venetian harbor town in Greece (Chania old town).
The ferry from Santorini to Heraklion (Crete’s main port) runs daily in summer — book through Ferryscanner well in advance. For the complete Crete experience including what to see, where to stay, and how to navigate the island, our Crete guide covers everything. For the classic comparison that many travelers face between staying on Santorini versus extending to Crete, our Crete vs Santorini guide makes the decision clear.
Paros: The Cyclades’ Most Balanced Island
Paros — 1.5-2 hours north of Santorini by ferry — is one of the most underrated islands in the Cyclades: excellent beaches (Kolymbithres with its granite rock formations, Santa Maria, Logaras), a beautiful main town (Parikia with its famous Panagia Ekatontapyliani church, one of the oldest in Greece), the preserved village of Naoussa with its Venetian harbor, and a social scene that attracts a sophisticated Greek and European crowd without reaching the extreme tourist intensity of Santorini or Mykonos. Paros serves as the main ferry hub for the central and northern Cyclades, making it an ideal island-hopping base for reaching Naxos (30 min), Mykonos (45 min), Ios (1.5 hours), and Santorini (1.5-2 hours). Book accommodation through Booking.com and ferries through Ferryscanner.
Planning Your Santorini Island Extension
The practical approach: decide whether you want a day trip (feasible to Ios, Thirassia, and with early departures to Folegandros) or a 2-3 night extension (worthwhile for Naxos, Milos, and Folegandros). Book all ferry connections through Ferryscanner — summer Cyclades routes are in high demand and should be booked 2-3 weeks ahead. For organized boat tours visiting multiple neighboring islands in a single day from Santorini, GetYourGuide and Viator offer well-reviewed options — check current ratings on TripAdvisor before booking. For staying connected across multiple island hops without worrying about roaming, an eSIM from Airalo covers Greece seamlessly — activate before you leave home.
Frequently Asked Questions
What islands are close to Santorini?
Ios (40-90 min), Thirassia (20-30 min), Folegandros (2 hours), Anafi (1.5 hours), Naxos (2-2.5 hours), Milos (2-3 hours). All accessible by ferry — book through Ferryscanner.
Can you do a day trip from Santorini to another island?
Yes — Ios and Thirassia are the most practical day trips given journey times. Folegandros works as a day trip with early departures. Naxos and Milos are better as overnight extensions.
Which island near Santorini is best?
Folegandros for authentic Cyclades character and dramatic scenery. Naxos for the most complete island experience at lower prices. Milos for geological drama and extraordinary beaches. Ios for beaches and nightlife energy.
How do I get from Santorini to nearby islands?
All ferries depart from Athinios port (accessible by bus or taxi from Fira — 10km, allow 30 minutes). Book tickets through Ferryscanner in advance — summer routes sell out.
Related Guides
For the Santorini base: complete Santorini guide. For individual island guides: Naxos, Milos, Ios. For the full Cyclades ferry network: Greek ferry guide. For the complete Greek islands comparison: best Greek islands guide.
Ready to Extend Your Cyclades Trip?
Book ferry connections through Ferryscanner, accommodation through Booking.com, and boat tours through GetYourGuide. The islands near Santorini are some of the finest in Greece — and most Santorini visitors leave without knowing they existed. For more Greek island guides, explore athensglance.com.