Santorini Day Trip from Rethymno

A Santorini day trip from Rethymno crosses the sea from Crete by high-speed boat and spends the day in Oia and Fira on the caldera rim. Tours across the rest of the country are listed on Greece Tours.

The sections below cover the tours you can book, the crossing, the caldera, Oia, Fira, the volcano, Akrotiri, the Minoan link, packing, booking and the trip from other Crete towns for a Santorini day trip from Rethymno, with links into the Santorini pages. The tours shown are checked on GetYourGuide and Viator.

What is a Santorini day trip from Rethymno?

A Santorini day trip from Rethymno is a full-day tour that takes you from Crete to Santorini island. You cross the sea, tour the volcanic island and its caldera, and return to Crete the same day.

Santorini, officially Thira or Thera, is a Greek island in the southern Aegean Sea. It sits about 200 km southeast of the Greek mainland. Of all the Cyclades, it is the island that lies farthest south.

Rethymno is the capital of the Rethymno regional unit on Crete. More than 35,000 people live there. The town has a small Venetian harbour and sits between Heraklion and Chania. A Santorini day trip from Rethymno starts and ends in this town.

The trip fits travellers who stay on Crete and want one day in the Cyclades. You see a second Greek island without moving hotels.

Which Santorini day trips from Rethymno can you book?

Six bookable tours on GetYourGuide and Viator cover a Santorini day trip from Rethymno or from Heraklion. Four sit on GetYourGuide and two sit on Viator. They differ in transfers, sightseeing stops and free time on the island.

Each GetYourGuide tour pairs the boat ride with a different plan on Santorini:

• Rethymno: Santorini Day Trip, Oia & Fira Highlights. You walk the whitewashed villages and see the caldera view.
• From Rethymno: Santorini Guided Tour and Cruise from Crete. It includes bus tours around Oia and Fira.
• From Rethymno: Full-Day Trip to Santorini by Boat. A driven tour takes you around the island after you land.
• From Heraklio Crete: Santorini Day Trip with Fast Boat. It starts in Heraklion rather than Rethymno and leaves the island plan to you.

Viator lists “Full-Day Trip to Santorini island by Boat from Rethymno with Transfer your Hotel”. It adds a hotel transfer to the boat trip. Viator also lists “Santorini Island Full-Day Sightseeing Tour from Rethymnon”. It fills the day with sightseeing across the island.

Pick a Santorini day trip from Rethymno with a transfer if you want a door-to-door day. Pick the Heraklio fast-boat tour if you want free time instead of a fixed route. Pick the Full-Day Trip by Boat if you want a driven tour of the island.

How do you cross from Crete to Santorini?

A Santorini day trip from Rethymno crosses the Aegean Sea on a high-speed boat. Crete lies to the south of Santorini, so you sail north. Ferries and boats to Santorini leave from the Port of Heraklion.

The Port of Heraklion also links Crete with Ios, Paros, Mykonos and Rhodes. The crossing is the first and last leg of a Santorini day trip from Rethymno.

The tour and cruise from Crete includes the ferry tickets. Its transfer in Crete is optional, so you can reach the port on your own. Book Heraklion port transfers if you want a ride from Rethymno to the boat.

What is the Santorini caldera?

The Santorini caldera is a large, water-filled basin formed by a volcanic eruption. Volcanic ash deposits hundreds of metres deep ring its edges. A Santorini day trip from Rethymno lets you see it from the villages along its cliff rim.

The eruption behind it was the Minoan eruption, about 3,600 years ago. It ranks among the largest volcanic eruptions in recorded history. Santorini is the largest island of a small, circular archipelago formed by the Santorini caldera.

Fira, the capital, stands on the edge of the caldera cliff, which rises 400 m. The caldera runs 18 km from Cape Akrotiri in the south to Cape Agios Nikolaos in the north. From the top, you look down into the flooded basin and across the ring of islands.

No other centre on the South Aegean Volcanic Arc is as active as Santorini. That arc is about 500 km long and 20 to 40 km wide. Volcanism on Thera began about 2 million years ago.

How long does a Santorini day trip from Rethymno last?

A Santorini day trip from Rethymno lasts 11 to 13 hours in total. Tours leave Crete early in the morning and bring you back at night. The exact length depends on the tour and its transfers.

Each tour sets its own length:

• Rethymno: Santorini Day Trip, Oia & Fira Highlights runs 11 to 12 hours.
• From Rethymno: Santorini Guided Tour and Cruise from Crete runs 12 hours.
• From Rethymno: Full-Day Trip to Santorini by Boat runs 13 hours.
• From Heraklio Crete: Santorini Day Trip with Fast Boat runs 12 hours. It gives you 6 hours of free time on Santorini.

Time on the island is shorter than the full day. Your tour keeps a fixed schedule on Santorini so the group makes the return boat. Plan photo stops and meals around that schedule.

Keep the next morning free after a Santorini day trip from Rethymno. That gives you time to rest before your next outing on Crete.

What do you see in Oia on a Santorini day trip from Rethymno?

A Santorini day trip from Rethymno reaches Oia, a small village on the north-west edge of the island. It sits about 150 m up, and people call it the “Eagle’s Nest”. White-washed churches with blue domes rise above its narrow alleys.

From the edge of Oia, you look across to Palea Kameni, Nea Kameni and the island of Therasia. The village had 1,087 people at the last census. Sunlight hours here are longer than in Fira.

Wealthy ship captains of the late 19th century built neo-classical mansions in Oia. Their two-storey houses stand on the highest part of the village. Cave houses are carved into the cliff, and ships’ crews used them.

Oia was rebuilt as a tourist town after an earthquake in the mid-20th century. On a Santorini day trip from Rethymno in summer, expect crowds in the village lanes.

Ammoudi harbour lies to the west of the village, down steep stairs north of Fort Londsa. It has tavernas and a pebble beach. The fishing village of Ormos Armeni lies below Oia to the south, and steps lead down to it.

What do you see in Fira?

Fira is the modern capital of Santorini island. On a Santorini day trip from Rethymno, you see its whitewashed houses up close. They stand along the edge of the 400 m high caldera, on the western side of the island.

The name Fira comes from another pronunciation of “Thira”. The central square, Plateia Theotokopoulou, holds the bus and taxi station. Large cruise ships anchor out in the water between Nea Kameni and Fira.

A zigzag footpath climbs from the old port below up to the town. Visitors walk it on foot or ride donkeys to the top. The steep Santorini cable car is the third way up from the port.

Look for these landmarks in Fira on a Santorini day trip from Rethymno:

• The Archaeological Museum of Thera, which stands 30 m east of the cable car entrance.
• The Museum of Prehistoric Thera, found at the south-east corner of the Orthodox Cathedral of Ypapanti.
• The Orthodox Cathedral of Ypapanti, built on the spot where an earlier church fell in an earthquake.
• The Three Bells of Fira, one of the churches of the town.

What is the volcano in the middle of the caldera?

On a Santorini day trip from Rethymno, the volcano in the middle of the caldera is Nea Kameni. Its Greek name means “new burnt”. Together with Palea Kameni, or “old burnt”, it formed through repeated eruptions of dacite lava and ash.

Both islands took shape over the past two thousand years. Nea Kameni is nearly round and about 2 km across. It covers 3.4 square km. A gravel path climbs all the way to the rim of its 130 m crater.

An active sulfur vent on the island is named Jorgo, after King George I. Red succulents cover the thin soil in summer. Scientists of the Institute for the Study and Monitoring of the Santorini Volcano (ISMOSAV) watch it closely.

Nea Kameni is a protected scientific site. Its last small eruption came in the mid-20th century. Tourist boats visit the Santorini volcano daily in summer. A crater walk needs one of those separate boat trips.

What did the eruption bury at Akrotiri?

The eruption destroyed Akrotiri, a Bronze Age settlement on Santorini, in the 16th century BC. Ash then buried the site, much like Pompeii. Akrotiri lies on the same island that a Santorini day trip from Rethymno visits.

Digging began in the 1960s under Spyridon Marinatos. Only the southern tip of a large town has been uncovered so far. It holds multi-level buildings, streets and squares. Walls stand up to 8 m high, and houses rise up to three storeys.

Wall paintings inside the buildings kept their colour under the ash. One of them shows saffron-gatherers offering crocus stamens to a seated woman.

Pipes with running water and water closets at Akrotiri are the oldest such utilities ever found. Twin systems carried hot and cold water. Experts believe the hot water was geothermal.

Entry details for the site sit on the Akrotiri tickets page.

Which other islands belong to Santorini?

Six other islands belong to the municipality of Santorini: Therasia, Nea Kameni, Palea Kameni, Aspronisi, Anydros and Christiana. A Santorini day trip from Rethymno takes you into this group of seven islands. Together they cover 90 square km of land.

Only two of the seven islands have residents:

• Santorini, the main island, covers about 73 square km and had 15,480 people at the last census.
• Therasia, the second inhabited island, is linked to Ammoudi harbour on Santorini by ferry.

Nobody lives on Nea Kameni, Palea Kameni, Aspronisi, Anydros or Christiana. On a Santorini day trip from Rethymno, you set foot on the main island.

How is Santorini linked to Minoan Crete?

A Santorini day trip from Rethymno crosses between two parts of one Bronze Age world. Crete is the homeland of the Minoan culture. Today, Akrotiri on Santorini is the leading Minoan site found anywhere outside Crete.

Akrotiri grew into one of the major Bronze Age ports of the Aegean. It sat on the main sailing route between Cyprus and Minoan Crete. Objects found there came from Crete, Anatolia, Cyprus, Syria and Egypt. Others came from the Dodecanese and the Greek mainland. The town also processed copper. Finds of moulds and crucibles show this work.

The Bronze Age eruption of Santorini struck at the height of the Minoan civilization. Cretan chronology places it in the Late Minoan IA period. After the blast, Santorini stayed empty for the rest of the Bronze Age. Meanwhile, Greeks took over Crete. The eruption has also been suggested as the source of the legend of Atlantis.

Knossos is the great Minoan palace on Crete. Pair it with a Santorini day trip from Rethymno to see both ends of the Minoan story. Book your entry ahead with Knossos Palace tickets.

What do you bring on a Santorini day trip from Rethymno?

Pack light for a Santorini day trip from Rethymno. The long day mixes steps, cobbled lanes and a sea crossing. Bring a passport or ID card, grippy shoes, sun protection and water. A light layer and a charged phone complete the bag.

• Passport or ID card: keep it ready for the ferry ticket.
• Comfortable shoes with grip: they help on steps and cobbled lanes.
• Hat and sunscreen: they shield you on open decks and in the streets.
• Water: carry a refillable bottle for the walks.
• Light layer: wear it on the boat deck during the crossing.
• Charged phone: keep it ready for photos, maps and calls.

A small backpack keeps your hands free on the steps and on the boat.

Treat the list above as practical tips, not as operator rules. Read the notes on your own listing for a Santorini day trip from Rethymno before you pack.

How do you book and cancel a Santorini day trip from Rethymno?

Book a Santorini day trip from Rethymno on GetYourGuide or Viator. Choose the date and the number of travellers, then pay online. A confirmation email arrives with the pickup or meeting details. Keep it on your phone for the day.

GetYourGuide offers free cancellation up to 24 hours before the start. This applies on listings that show it. Read the terms on the listing before you pay.

The 12-hour tour from Rethymno with a cruise includes the ferry tickets. It also covers guided bus tours of Oia and Fira. A transfer in Crete is optional on that listing. The Viator full-day boat trip from Rethymno includes a hotel transfer.

Strong wind can stop high-speed boats. On the day, read the operator’s message before you head to pickup.

How does the trip from Rethymno compare with a trip from other Crete towns?

A Santorini day trip from Rethymno adds the road from Rethymno to the port. That drive is the main difference from other Crete towns. Rethymno sits between Heraklion and Chania. Tours from Rethymno last 11 to 13 hours in total.

The listing “From Heraklio Crete: Santorini Day Trip with Fast Boat” lasts 12 hours. It crosses by fast boat and gives 6 hours of free time on Santorini.

The Port of Heraklion has ferries to Santorini, Ios, Paros, Mykonos and Rhodes. For tours that start elsewhere on the island, see our Santorini day trip from Crete page.

A Santorini day trip from Rethymno suits guests who stay in the town or its villages. Pick the start closest to your hotel to keep the road time short.

Frequently Asked Questions

Is Santorini part of Crete?

No. Santorini is not part of Crete. It lies at the southern end of the Cyclades, a separate island group north of Crete. The day trip crosses the sea from Crete to the Cyclades and back.

Can you visit the volcano on a Santorini day trip from Rethymno?

Not on the listed tours, which visit Oia and Fira. From the caldera rim you see the volcano island of Nea Kameni. Tourist boats visit it daily in summer on separate trips. Plan one of those on another day.

Which port does the boat leave from in Crete?

The fast-boat tour leaves from Heraklion. Each Santorini day trip from Rethymno names its port on the booking page. Check it before you pay. On a longer stay, see Santorini port transfers for rides to your hotel.

Do you need a passport or ID card for the ferry?

Carry a passport or ID card on the day as a practical tip. The ferry ticket carries the traveller’s name. The document links you to that ticket at the port.