A Corinth Canal cruise carries you between the sheer walls of the narrow cut that splits the Peloponnese from mainland Greece. Day trips and boat tours across the country are gathered on Greece Tours.
This page covers the boats, the tours from Loutraki, Corinthia, Athens and Nafplio, the view from the water, cruise ships, the season and planning.
What is a Corinth Canal cruise?
A Corinth Canal cruise is a boat passage through the narrow channel that cuts the Isthmus of Corinth. The canal links the Gulf of Corinth on the Ionian side with the Saronic Gulf on the Aegean side.
The isthmus is a strip of land 6.3 kilometres wide. It joins the Peloponnese to mainland Greece. The canal crosses it from sea to sea, so the Peloponnese now stands apart like an island. Ships that use the canal skip a trip of about 700 kilometres around the peninsula.
The channel has these measurements:
- Length: 6,343 metres, about 6.3 kilometres
- Width: 24.6 metres at the surface and 21.3 metres at the bottom
- Depth: 8 metres
- Rock walls: rising 90 metres above sea level
The canal sits at sea level and has no locks. A Corinth Canal cruise stays at one water level from end to end. Boats pass between sheer rock walls cut at an angle of about 80 degrees, close to vertical. Our Corinth Canal tours page lists the trips that make this passage.
Which boats sail a Corinth Canal cruise?
Small tour boats, the glass-bottom boat from Loutraki, private yachts and small cruise ships all sail a Corinth Canal cruise. Larger vessels need tugs to tow them through, and large modern ships do not fit the narrow channel at all.
Small tour boats carry day visitors from one end to the other. Loutraki, on the Gulf of Corinth shore, is one starting point, with a glass-bottom boat among its craft.
Private yachts use the canal too. About 15,000 ships pass each year, mainly tourist ships and smaller recreational boats. Small cruise ships sail it on Peloponnese routes, such as the 184-passenger Le Dumont-d’Urville.
The narrow width keeps large modern cargo ships and cruise liners out. The cruise ship MS Braemar set the record for the longest ship to pass. The ship ran to 195 metres in length and 22.5 metres across the beam, which left little room on either side.
Every Corinth Canal cruise follows the rules of Corinth Canal S.A., the navigation authority for the canal. Traffic runs in a single direction, with one group of vessels in the cut at a time. The two gulfs have different tide times, which creates strong currents.
What does the Corinthia Corinth Canal cruise on GetYourGuide include?
The Corinthia Corinth Canal cruise on GetYourGuide lasts 4.5 hours. It sails through the canal between the Corinthian and Saronic Gulfs and passes the ancient port of Kenchreai. Guests swim from the boat at Siderona beach.
GetYourGuide sells the trip as tour 968354, “Corinth Canal Cruise: Ancient Ports, History, Crystal Waters”. It files the tour under Corinthia, the region that holds the canal. The card also lists pickup as available.
This Corinth Canal cruise runs on a boat with a glass bottom. Passengers look down through the glass to view marine life under the hull. Pack swimwear and a towel, because guests get into the sea straight from the deck at Siderona.
The card lists these booking terms for the trip:
- Free cancellation
- Booking closes 2 hours before the start
- Adult band: ages 13 to 99
- Youth band: ages 5 to 12
- Children aged 4 and younger must still be added to the booking
- Up to 45 guests per age band on one booking
How does the Loutraki glass-bottom boat cross the Corinth Canal?
The St. Andreas Corinth Canal cruise is a 1.5-hour passage through the canal on a glass-bottom boat. GetYourGuide lists it under Loutraki, and the clear panels in the hull let passengers look down into the water below.
GetYourGuide sells the trip as tour 1071792, “Corinth Canal: Passage By St. Andreas Glass-Bottom Boat”. The card sums up the route in one line: a cruise through the Corinth Canal on a glass-bottom boat. It lists no swim stop and no other port.
Loutraki, a resort on the Gulf of Corinth shore, belongs to Corinthia. It sits 8 kilometres northeast of Corinth and 81 kilometres west of Athens. The town is the seat of the Loutraki-Perachora-Agioi Theodoroi municipality. Other trips from the town appear on our Loutraki tours page.
Pickup is available on this Corinth Canal cruise as well. Cancellation is free, and booking closes 2 hours before the start.
The age bands are adult 18 to 99, youth 13 to 17, child 4 to 12 and infant 3 and younger. The adult band here starts at 18, not 13 as on the Corinthia trip. One booking takes up to 45 guests per band.
The two trips suit different plans. Pick the Corinthia boat for a half-day outing with a swim and an ancient harbour. Pick the St. Andreas Corinth Canal cruise for a short canal passage during a Loutraki stay.
Can you take a Corinth Canal cruise as a day trip from Athens or Nafplio?
Yes. A Corinth Canal cruise fits into a single day from Athens or Nafplio. GetYourGuide lists three day trips that start in Athens and one boat trip that starts in Nafplio. They last from 4.5 to 10 hours.
Each listing below comes from its GetYourGuide card. Three of the four offer pickup, and two run as private tours for your group alone.
- Athens, 5.5 hours: canal cruise, Saronic Gulf swim, onboard buffet with local wine, Ancient Corinth and Acrocorinth.
- Nafplio, 4.5 to 7 hours: glass-bottomed boat to the Isthmus of Corinth, seabed views and a talk on the canal.
- Athens, 10 hours, private: a sail through the canal, the ancient Theater of Epidaurus and the town of Nafplio.
- Athens, 6 to 8 hours, private: the canal, Ancient Corinth, the Acrocorinth fortress and a traditional Greek lunch.
Choose by time and pace. The 5.5-hour trip is the shortest option from Athens and fits into half a day. The 10-hour private tour pairs a Corinth Canal cruise with Epidaurus and Nafplio in one long day.
For a closer look at the Athens options, read our Corinth Canal day trip from Athens page.
What do you see from the water on a Corinth Canal cruise?
On a Corinth Canal cruise you see near-vertical limestone walls on both sides and a narrow strip of sky. Road and rail bridges cross high overhead. Each end of the cut opens at a harbour: Isthmia and Poseidonia.
The canal cuts through heavily faulted sedimentary rock in an active earthquake zone. From the deck, you see the stone stacked in layers on both walls. Masonry retaining walls guard the water’s edge along more than half of the canal. They stop the wake of passing boats from eating into the base.
Look up and you see the rail, road and motorway bridges, which cross some 45 metres over the boat. With walls this steep, only a thin band of sky and daylight shows above the boat. The high walls also funnel the wind along the channel, so expect a breeze on deck.
The eastern harbour of Isthmia sits on the Saronic Gulf. The western harbour of Poseidonia faces the Gulf of Corinth. Each end has a submersible road bridge that sinks below the surface to let boats pass. Your Corinth Canal cruise glides over the lowered deck before the bridge rises again for cars.
Which cruise ships include a Corinth Canal cruise?
A Corinth Canal cruise appears on small-ship itineraries from Windstar, Ponant, SeaDream Yacht Club, Emerald Cruises and CroisiEurope. The canal takes ships up to 24.6 metres wide with a draft up to 7.3 metres, so large cruise ships stay outside.
CruiseMapper lists canal transits for Windstar’s Star Legend, Ponant’s Le Champlain, SeaDream I, Emerald Kaia and Emerald Azzurra. CroisiEurope runs an Athens to Dubrovnik route on La Belle de l’Adriatique, a 197-passenger ship, that names the canal. Seabourn guests board a local boat for the passage instead. The canal company puts a crossing at about 40 minutes.
On a Windstar Corinth Canal cruise aboard Star Legend, guests stood on the open deck in front of the Yacht Club. A second viewing spot sat one deck below, by the hot tub. The captain and pilot stepped out onto the bridge wings to check the gap to the rock. The ship reached the last bridge in under an hour.
When does a Corinth Canal cruise run?
A Corinth Canal cruise runs from spring to autumn, and the cruise ship transits listed on CruiseMapper span April to November. Tour boats do not sail all year, and the canal shuts for landslide and wall repairs, so check the timetable first.
A landslide once closed the canal to all boats. It reopened, shut again, and then reopened after long repairs and new safety measures. Today it serves chiefly as a tourist route.
Wall repairs also bring planned closures. The Port Authority of Corinth has stopped all passage in autumn for slope restoration work. It announces each new opening date once the work ends. Confirm that the canal is open before you book a trip.
Corinthia has a hot-summer Mediterranean climate. In July the average daily high near Corinth reaches 33.2 °C, and July rain averages just 5 mm. At midday the sun stands high over the narrow cut, so the open decks get little shade.
Morning and late-day sailings feel cooler. The sun sits lower, and the tall rock walls throw shade across the water. CruiseMapper lists Star Legend transits from 08:00 to 10:00 and from 17:00 to 19:00. A Corinth Canal cruise at those hours skips the midday heat.
How do you plan a Corinth Canal cruise?
Plan a Corinth Canal cruise by picking your pier first: Loutraki, Isthmia or Corinth. Reach it from Athens by suburban train, KTEL bus or the A8 motorway. Pack sun gear and water, and arrive at the pier early.
The Athens Suburban Railway, or Proastiakos, links Athens with Corinthia from 4:30 am to midnight daily. Trains reach Corinth from Athens in roughly 55 minutes. KTEL Korinthias buses link Athens with the Isthmos station, southeast of Corinth’s centre. Drivers take the A8 toll motorway, which runs from Athens to Patras via Corinth.
Corinth lies about 78 km west of Athens. Arrive at the pier early so you board without a rush. Leave time for Ancient Corinth, inland from the modern city, as a same-day add-on. Bring these items on board:
- A hat with a brim
- Sun cream
- A bottle of water
- A light layer for the breeze on the water
- A camera strap
Which questions do travellers ask about a Corinth Canal cruise?
How long does a Corinth Canal cruise take?
The time depends on the tour you pick. The glass-bottom boat crossing lasts 1.5 hours. The cruise that passes the ancient port of Kenchreai lasts 4.5 hours. The day trip from Athens with a swim and an ancient site visit lasts 5.5 hours. Check each listing for start times.
Can you swim on a Corinth Canal cruise?
Yes, on two of the three tours listed here. The 4.5-hour cruise stops for a swim from the boat at Siderona beach. The 5.5-hour day trip from Athens includes a swim in the Saronic Gulf. The 1.5-hour glass-bottom crossing names no swim stop, so check that listing before you pack a swimsuit.
Is a Corinth Canal cruise suitable for children?
Yes, all three tours take children. The 4.5-hour cruise lists youth tickets for ages 5 to 12. Children aged 4 and younger must still be added to the booking. The glass-bottom crossing lists child and infant tickets. The Athens day trip lists child tickets for ages 17 and younger.
Do you need to book a Corinth Canal cruise in advance?
Yes, each tour sets a booking cut-off. The 4.5-hour cruise and the glass-bottom crossing need booking at least 2 hours ahead. The Athens day trip needs booking at least 10 hours ahead. All three list free cancellation, and pickup is available. Check the listing for open dates and the pickup points.
Does a Corinth Canal cruise run in winter?
Tour boats sail from spring to autumn, and cruise ship transits on the CruiseMapper schedule run from April to November. In the cold months, check each listing for open dates. The canal also shuts at times for wall repairs, so confirm it is open before you travel.
What do you wear on a Corinth Canal cruise?
Wear light, breathable clothes and flat shoes with grip for a wet deck. Add a hat and sunglasses, since the open deck takes strong sun at midday. Pack swimwear under your clothes on a tour with a swim stop, and keep a towel in your bag.
Can you watch Corinth Canal cruise boats from the bridges?
Yes. Visitors stand on the old road bridge high above the cut and watch boats pass far below. From that height, a tour boat looks tiny between the walls. At Isthmia, crowds also gather to see the submersible bridge sink and a boat glide over it.