An Ermioni sunset cruise takes a small boat out along the southern tip of the Argolid peninsula as the sun drops behind the Peloponnese mountains, with Hydra and Spetses on the skyline. Every other trip on our site sits on the Greece Tours homepage.
This page covers the cruises you can book, what comes on board, sunset times by month, the coast and islands you pass, sea life, photo tips, the calmest months, what to bring and how to reach Ermioni.
What is an Ermioni sunset cruise?
An evening boat trip that ends at sundown on the Ermionida coast is an Ermioni sunset cruise. The boat sails out, stops for a swim and returns as the sun goes down. Bookable boats leave from Porto Heli, in the same municipality as Ermioni.
The port town of Ermioni gives the Ermioni sunset cruise its name. It lies on the Argolid Peninsula in the Peloponnese. Since the local government reform it belongs to the municipality of Ermionida.
Porto Cheli is a summer resort town in that same municipality. It sits on a bay of the Argolic Gulf. Wikipedia also spells the name Portocheli, and GetYourGuide titles use Porto Heli.
GetYourGuide pins the three listings below at map points in Porto Cheli. An Ermioni sunset cruise on that platform therefore starts in Porto Cheli, not at the Ermioni quay.
Sunset gives every Ermioni sunset cruise its fixed end point. In astronomy it is the moment the upper edge of the Sun disappears below the horizon. Civil twilight follows and lasts until the Sun sits 6 degrees under the horizon.
GetYourGuide’s summary of its Porto Heli sunset listing shows what an Ermioni sunset cruise offers. Guests swim in crystal-clear waters, explore hidden bays and enjoy complimentary snacks and drinks on board.
Day cruises and island routes from the same coast sit on our Ermioni boat trip page. This guide stays with the evening trips.
Which Ermioni sunset cruise tours can you book?
Three GetYourGuide listings leave from Porto Cheli. They are a four-hour sunset cruise, a six-hour private cruise on the Taxiarchis and a private day cruise toward Spetses. Saronic Angel, Asterias and Fun in the Sun add local boats of their own.
The Porto Heli listing titled “Sunset Cruise with Snacks and Drinks” is the sunset one. It lasts 4 hours and sells a private group booking, so no other party boards. GetYourGuide places the activity in Porto Cheli.
The summary calls the boat a classic Greek cruiser. The booking form takes 1 to 23 passengers. The tour runs in English and Greek. This is the listing to open for an Ermioni sunset cruise.
The page for this Ermioni sunset cruise carries a free cancellation label. It also sets a cut-off: you must book at least 10 hours before the start.
Borrow A Boat describes the Taxiarchis, the boat of the six-hour listing below. Its route leaves the wider Porto Heli area for bays, secluded beaches and sea caves that roads do not reach. Spetses and Spetsopoula are named as possible stops.
The Porto Heli listing titled “Private Cruise with Snacks and Drinks” lasts 6 hours. It is private, takes 1 to 23 passengers and offers free cancellation. The languages are Greek and English.
The summary names the boat: Taxiarchis, a classic Greek traditional cruiser built in nineteen fifty-one. It promises “modern, minimal elegance”. Borrow A Boat lists the same boat with check-in at 09:00 and check-out at 15:00, which is six hours.
“From Porto Cheli: Private Daily Spetses Cruise & Swim Stops” is a day cruise, not a sunset listing. Its length runs from 7 hours to 4 days. It is private, marked as a small group, and takes 1 to 64 passengers.
The summary says it can reach Spetses within 20 minutes on selected itineraries. Guests swim in emerald waters near island beaches. Six languages are listed: Spanish, English, Italian, French, Greek and German. The booking cut-off is 10 minutes before the start.
For an Ermioni sunset cruise on a smaller boat, Saronic Angel runs private cruises from Porto Heli with professional skippers. Its FAQ puts the length of a Porto Heli sunset cruise at 3 hours, with optional swim stops. Boats leave from Porto Heli marina or from hotel private docks.
Asterias Boat Rental & Fishing Tours in Ermioni is listed by Villas on Board. The listing offers a “4-5 hours boat trip till sunset”. Trips run from 9am to 1pm or from 2pm to 6pm. Guests keep the fish they catch.
Fun in the Sun lists a speed boat cruise called Ermioni Coastline and Dokos Escape. It has a morning slot from 10.00 to 14.00 and an afternoon slot from 16.00 to 20.00. The firm adds that the programme and timetable can change on the captain’s decision.
What comes on board an Ermioni sunset cruise?
Listings name food, drinks, snorkelling gear and a skipper. The Taxiarchis page at Borrow A Boat lists complimentary fresh fruit, juices, sandwiches and soft drinks. The boat also carries spacious sunbeds, snorkelling equipment and water toys.
The summary of the four-hour Ermioni sunset cruise listing promises complimentary snacks and drinks on board. It names no single item, so each firm’s own list is the better guide.
Borrow A Boat gives the Taxiarchis a length of 16 metres and a beam of 5.5 metres. Its data list shows 6 beds, 3 cabins and 2 bathrooms. A captain is provided.
Its equipment list runs to 26 items. Five of them are an electric WC, a generator, a coffee machine, outside speakers and a stand-up paddleboard. The page names the charter company as YachtingMates.
It says a professional captain from that company runs the boat. Saronic Angel and Fun in the Sun also list a skipper or crew. An Ermioni sunset cruise from these firms comes with someone at the helm.
Saronic Angel lists a professional skipper, snorkelling equipment, towels on request, water, soft drinks and mini snacks. It adds optional swim stops.
Fun in the Sun lists soft drinks, snorkelling equipment, fuel and an experienced English-speaking crew for its speed boat cruise. The lists differ from boat to boat, so read each one before you book.
Safety kit on an Ermioni sunset cruise is described in two ways. Borrow A Boat says all required safety equipment comes at no additional cost, in line with local and maritime rules. Saronic Angel says its boats carry certified safety equipment.
The EU sets a standard for passenger ships. Its directive on safety rules and standards for passenger ships has a chapter on life-saving appliances. The table in that chapter lists life jackets and child life jackets. It scales them by the number of persons on board.
The same text requires notices for passengers. They give the assembly station, emergency actions and the way to put on life jackets. Those notices apply to ships the directive covers. The listings do not say which rules fit each boat, so ask the crew where the life jackets are kept.
What time does an Ermioni sunset cruise sail?
The start time follows the sun. A trip that ends at sundown leaves earlier in winter and later in summer. Sunset at Ermioni falls at 17:10 in mid-December and 20:49 in mid-June, a gap of 3 hours 39 minutes.
The sunset times below suit any Ermioni sunset cruise. They come from the sunrisesunset.io service. The service was set to Ermioni’s coordinates from Wikipedia: 37 degrees 23 minutes north, 23 degrees 15 minutes east.
Each time is for the 15th of the month, on the 24-hour Greek clock, cut to the minute. Greek clocks go forward in spring and back in autumn. The service reports an offset of plus 2 hours in winter and plus 3 hours in summer.
- January: 17:33
- February: 18:06
- March: 18:34
- April: 20:02
- Late spring (the fifth month): 20:29
- June: 20:49
- July: 20:47
- August: 20:19
- September: 19:35
- October: 18:50
- November: 17:16
- December: 17:10
A trip that ends at sundown starts earlier by its own length. For a 4-hour Ermioni sunset cruise, like the GetYourGuide sunset listing, that is 16:49 in mid-June and 13:10 in mid-December. These are sums, not timetables. The booking confirms the real start.
Saronic Angel gives 3 hours. A trip of that length starts at 17:49 in mid-June and 14:10 in mid-December. The same sum works for any firm’s stated length.
The Fun in the Sun afternoon slot runs from 16.00 to 20.00. Sunset on 15 September falls at 19:35, inside that window. On 15 June sunset comes at 20:49, after the slot ends.
The Asterias trip from 2pm to 6pm shows the winter case of an Ermioni sunset cruise. Sunset on 15 December falls at 17:10, so the sun is down before the trip ends.
After sunset an Ermioni sunset cruise sails on under a sky that stays lit. Civil twilight lasts until the Sun sits 6 degrees under the horizon. The service puts that moment at 21:20 on 15 June and 17:39 on 15 December. That is about half an hour after sunset in both cases.
Photographers call the light before sunset the golden hour. Adobe defines it as the last hour before sunset. It describes a low sun, longer shadows and warmer light with yellows, oranges and reds.
Wikipedia describes the golden hour as the stretch of the day ahead of sundown. In that stretch the daylight turns redder and softer than under a high sun. It adds that the hour is figurative: the effect has no clearly defined duration and varies with season and latitude.
The sunrisesunset.io service sets its evening golden hour between 6 degrees above and 4 degrees below the horizon. On 15 June that runs from 20:10 to 21:08. On 15 December it runs from 16:29 to 17:28.
To match an Ermioni sunset cruise to the golden hour, find the sunset time for your date. Subtract the trip length to get the latest start that still ends at sundown.
Which coastline does an Ermioni sunset cruise follow?
The Ermionida coast runs from the deep bay of Ermioni to the bay of Porto Heli. Pine forest, sheltered coves and low hills frame the shore, and the open Argolic Gulf lies on the other side. An Ermioni sunset cruise keeps this shore beside it.
The Argolic Gulf lies off the eastern coast of the Peloponnese. Argolis lies to its north and Arcadia to its south. It is about 25 kilometres wide at its mouth and 80 kilometres long, according to the Argolic Environment Foundation. The Ermionida coast sits in the southeastern part of Argolis, on the easternmost “finger” of the Peloponnese.
Ermioni is a small port town built in a deep bay. A pine forest grows beside it, at the edge of a peninsula. It faces the islands of Hydra and Dokos. On an Ermioni sunset cruise, the town and its pines mark one end of this coast.
Porto Heli is a summer resort town on a bay of the Argolic Gulf. Yachts and sailing boats moor in its large natural bay, and a yacht marina sits inside it. Sheltered coves and beaches of sand and pebbles run along the shore around it. Boats that leave this bay are listed on our Porto Heli boat trip page.
Two beaches add landmarks to the coast. Petrothalassa lies east of Porto Heli and is one of the largest beaches of the area, with turquoise water. Dardiza lies four kilometres north of Ermioni and has a sandy beach.
Kosta is a small port on the southern tip of Ermionida, five kilometres from Porto Heli. Spetses faces it across a narrow strait. Wikipedia records that Spetses joined the mainland at Kosta by an isthmus in the Mesolithic age. On an Ermioni sunset cruise, Kosta marks where island and mainland face each other.
Kranidi, the seat of the Ermionida municipality, stands four kilometres from the coast. The land around it consists of low hills covered with olive groves and small forests. The town lies 10 kilometres west of Ermioni, so on an Ermioni sunset cruise its hills form a green backdrop.
Ancient Hermione stood where Ermioni stands today. ToposText lists it as an Archaic to Roman settlement. Remains of an Archaic defensive wall lie on the shores of its peninsula. Its harbour lay in the smallest northern bay. The city was also known for porphyra, a very important red dye.
Which islands rise on the horizon of an Ermioni sunset cruise?
Hydra, Dokos, Spetses, Spetsopoula and Trikeri sit within view of an Ermioni sunset cruise. Hydra is a long ridge and Dokos a rocky island. Spetses is a pine hill, Spetsopoula a small green isle and Trikeri a three-peaked islet.
Across the water from an Ermioni sunset cruise, Hydra is a rocky mountain chain 20 kilometres long. It is between 1.5 and 6 kilometres wide, with poor soil. Its highest peak, Mount Eros, reaches 592 metres.
At Cape Zourvas on the east coast of Hydra stands a lighthouse. The tower is 10 metres high and sits in a rocky area that is hard to reach. Its light carries 18 miles from a focal height of 36 metres.
Dokos is a wild, rocky island and a designated Landscape of Special Natural Beauty. Its perimeter measures 24.2 kilometres. Olive trees grow across it, and its cliffs hold nesting grounds for seabirds. The lighthouse stands on the eastern side, opposite Hydra. Its tower is 9 metres high, and the light sits 23 metres above the sea.
On the horizon of an Ermioni sunset cruise, Spetses reads as green pine hills. The island lies 1.5 miles off the Ermionida coast. Its area is just over 2,000 hectares, and its highest point reaches 245 metres. Pine-covered hills alternate with cultivated ground, and its ancient name, Pityussa, means abounding in pine trees.
Spetsopoula lies southeast of Spetses and covers about two square kilometres. Its ancient name was Aristera, and its modern name means small Spetses. Pine trees and olive groves grow there. Against the larger bulk of Spetses, it is the small green shape beside it.
Trikeri lies south of Hydra and Dokos, washed by the Myrtoan Sea. It is known for its three “heads”, the summits of its three hills. The island is uninhabited and belongs to the municipality of Hydra. Its last shepherd left after the Second World War.
Together the five islands belong to two municipalities. Hydra, Dokos and Trikeri fall under Hydra, while Spetses and Spetsopoula fall under Spetses. A narrow strip of water separates Hydra from the Peloponnese. Seen from an Ermioni sunset cruise, the five outlines overlap in layers.
Which sea life lives along an Ermioni sunset cruise route?
Seagrass meadows, dolphins, fish, sea turtles and seabirds belong to the Argolic Gulf. Researchers have mapped Posidonia oceanica meadows around Spetses, Spetsopoula and Hydra. These records describe the gulf as a whole, not a guaranteed sighting on one Ermioni sunset cruise.
Posidonia oceanica, also called Neptune grass or Mediterranean tape weed, is a seagrass found only in the Mediterranean Sea. It forms large underwater meadows. The European marine data network EMODnet says these meadows give food and shelter to marine species.
The plant’s free-floating fruit is called the olive of the sea. Balls of fibrous foliage, known as egagropili, wash ashore. The coast of an Ermioni sunset cruise sits close to waters where Greek researchers have charted these meadows.
iSea, a Greek marine research group, first mapped Posidonia meadows around Spetses, Spetsopoula and Velopoula. It then extended the work to Hydra, and later to the Argolic Gulf. The maps show well-preserved meadows and degraded areas side by side.
iSea names uncontrolled anchoring and pollution from wastewater and litter as the main threats. It calls the meadows biodiversity hotspots, nursery areas and natural blue carbon sinks. A nursery area is a place where young sea life grows up in shelter.
The Argolic Environment Foundation lists dolphins, sharks, octopuses and squid among the sea life of the gulf. Shoals of anchovy and sardine live there, and tuna stream in and out. This list describes the gulf, not what one Ermioni sunset cruise will show.
Seahorses mate in fields of seagrass, the foundation adds. Sea turtles and monk seals hunt along the coast. The sea in the gulf reaches almost a kilometre deep. Wetlands around it host hundreds of bird species, both local birds and migrants.
Seabirds also nest closer to the water. The cliffs of Dokos provide nesting grounds for seabirds, according to the Experience Attica guide. Dokos faces the Ermioni shore, so those cliffs stand in view of an Ermioni sunset cruise.
How do you photograph the light on an Ermioni sunset cruise?
Shoot an Ermioni sunset cruise in the golden hour, when the low sun gives soft, warm light. Stay on deck for the blue hour that follows. On a phone, turn on the grid and tap the bright sky. Drag the exposure down slightly and hold the phone steady.

The golden hour is the short span of time ahead of sundown. The light then turns warmer and gentler than at midday. The low sun sends its light through more air, so the sky supplies more of the light. Contrast drops, shadows are less dark and highlights burn out less easily.
Colour temperature puts a number on that warmth. Wikipedia gives about 3,500 kelvin for the golden hour and about 5,500 kelvin at midday. On an Ermioni sunset cruise, the shore and the sea take on that warmer tone.
The blue hour follows, when the sun sits deep below the horizon. The leftover sunlight takes on a mostly blue shade, and there are no sharp shadows. Wikipedia calls the term colloquial, with no official definition.
Tap the brightest part of the sky to set the exposure. Then drag the slider down slightly to keep the colours, advises Passport and Pixels. Turn on the grid lines to keep the horizon level. Hold the phone steady, or balance it on something, to avoid a blurry image.
Clean the lens first. Smudges, fingerprints and dust stand out when you shoot toward the light. Use the main camera lens instead of digital zoom for better quality, and crop later. HDR mode takes photos at different exposures and merges them, which adds detail in bright and dark areas.
A silhouette needs a clear, recognisable shape. Hydra’s long ridge and the lighthouse tower on Dokos give an Ermioni sunset cruise two such outlines. Expose for the sky, and the foreground turns dark or even black. Leave the sky around the shape empty so the outline stands out.
Place the horizon on a third line of the grid. The guide calls the rule of thirds a guide, not a rule. A centred horizon works when a reflection fills the lower half. Shooting straight at the sun can leave a green spot where the light hits the sensor. Change your angle to remove it.
Keep shooting after the sun drops below the horizon. On cloudy days, the sky can burst into colour long after sunset, the guide notes. That makes the blue hour worth the wait on an Ermioni sunset cruise. Edit gently afterwards: crop, straighten the horizon, lower the highlights and add a small boost to vibrance.
Which months give the calmest Ermioni sunset cruise?
No source ranks the months by calm, but an Ermioni sunset cruise sails in a gulf sheltered from the Meltemi. Greek Sails says the midday sea breeze quietens in the evening. Ermioni seawater averages 22.6°C in June and 26.3°C in August.
Greek Sails lists Ermioni among the ports of its Argolic Gulf sailing area. The guide says the gulf is well protected from the summer Meltemi. That wind blows from the north or northeast. Instead, Greek Sails describes a south-easterly sea breeze. It curls into the gulf and arrives at midday on the majority of days.
That breeze gives a comfortable Force 4 to 5, the guide says. It then quietens in the evening to leave a peaceful night. An Ermioni sunset cruise falls inside that evening spell.
The guide adds that winds in the Hydra channel can blow from the northeast. The channel runs between Poros and the Argolic Gulf, and the Meltemi turns to follow it.
The Beaufort scale helps you read the wind forecast for an Ermioni sunset cruise. The Met Office calls it an empirical measure of wind intensity based on observed sea conditions. Its marine forecasts use the scale.
Force 4 is a moderate breeze of 11 to 16 knots. Force 5 is a fresh breeze of 17 to 21 knots. Force 6 is a strong breeze of 22 to 27 knots.
The Met Office table lists probable wave heights for each force. Force 4 gives 1.0 metre, Force 5 gives 2.0 metres and Force 6 gives 3.0 metres. The table notes that these values refer to well-developed wind waves of the open sea. Greek Sails adds that the gulf’s short reach makes for flatter seas, even when the Meltemi blows.
Water temperature follows the calendar. SeaTemperature.org gives an Ermioni average of 15.7°C in April and 18.5°C in late spring. June averages 22.6°C and July 25.7°C. August is the warmest month at 26.3°C. September averages 25°C and October 22.2°C. A swim stop on an Ermioni sunset cruise meets an average above 22°C from June to October.
The same table gives a range for each month, which suits planning an Ermioni sunset cruise. August water runs from 24.4°C to 28.2°C, and October water from 20°C to 24.5°C. The lowest monthly minimum of the year, 13.8°C, falls in April. The monthly average drops to 19.1°C in November.
Check the forecast before you go. The Hellenic National Meteorological Service issues marine forecasts for METAREA 3 (E), the Eastern Mediterranean and Black Sea. These forecasts cover the next 24 hours and give a 12-hour outlook. Confirm the wind with your skipper on the day of your Ermioni sunset cruise.
Greek Sails tells skippers at Ermioni to choose the north or south quay according to the wind direction. It also says the Argolic Gulf tends to be quieter than the Saronic, because the gulf lies further from Athens.
Which clothes and items suit an Ermioni sunset cruise?
For an Ermioni sunset cruise, pack light non-slip shoes, a windproof jacket, sunglasses, a wide-brimmed hat and SPF 30 sunscreen. Each item comes from a sailing school, a skippered-charter guide or the NHS. The paragraphs below name every source.
Shoes follow the Aegean Sailing School checklist for boating shoes in Greece. The school lists protection for toes and feet, which rules out sandals. It also lists a light-coloured, non-slip sole that does not mark the deck.
The school adds a small tread, so stones do not get caught. It also lists shoes that slip on and off in hot weather. A pair needs to fit snugly but comfortably, with the foot not sliding and the toes not cramped.
The school says bare feet are fine during the day. You need shoes when using the anchor or stepping ashore. Greek Islands Sailing, a skippered-charter company, tells guests they will be barefoot on its boats. Ask your operator which rule applies.
Greek Islands Sailing suggests a windproof jacket in case of stronger winds. It also lists a sun hat, dark sunglasses and sun block. It says reflection from the water means you take in plenty of sun while on board.
The NHS says not to rely on sunscreen alone. Wear suitable clothing, and spend time in the shade when the sun is at its hottest. The NHS list covers a wide-brimmed hat that shades the face, neck and ears. It also names a long-sleeved top and trousers or long skirts in close-weave fabrics.
For sunglasses, the NHS names wraparound lenses or wide arms with the CE Mark. For sunscreen, it asks for an SPF of at least 30 against UVB and at least 4-star UVA protection.
On an Ermioni sunset cruise, the NHS warning about water applies. Water reflects ultraviolet rays. The cooling effect of water can make you think you are not getting burned. The NHS says to reapply sunscreen after swimming, towel drying and sweating, and every 2 hours.
The NHS also says to apply sunscreen twice: 30 minutes before going out and just before going out. Adults need around 6 to 8 teaspoons to cover the whole body. The NHS keeps babies under 6 months out of direct sunlight.
Plan for motion sickness before an Ermioni sunset cruise. The NHS lists dizziness, feeling sick, being sick, headache, feeling cold and going pale, and sweating as symptoms. It says the inner ear sends different signals to the brain than the eyes see. The mismatch causes the illness.
To ease it, the NHS says to sit in the middle of a boat. Look straight ahead at the horizon, and breathe fresh air if possible. Close your eyes and breathe slowly, or try ginger as a tablet, biscuit or tea.
The NHS also says not to read, watch films or use electronic devices. It advises against heavy meals, spicy foods and alcohol shortly before or during travel. For children, it suggests talking, listening to music or singing, and breaking up long journeys.
How do you reach Ermioni for a sunset cruise?
To join an Ermioni sunset cruise, take the Hellenic Seaways ferry from Piraeus Gate E8. The operator lists the route from 2 hours and 25 minutes. Driving 166 kilometres from Athens takes an estimated 2 hours 48 minutes. Taxi Ermioni runs transfers from Athens airport.
Hellenic Seaways operates daily itineraries to and from Ermioni and shows the departure times when you book. The departure takes place from Gate E8 in Piraeus. The company says the route lasts from 2 hours and 25 minutes.
Check the gate on your ticket before an Ermioni sunset cruise, because two Hellenic Seaways pages differ. Its Ermioni page names Gate E8. Its Piraeus port map places the Aero Highspeed vessels for Poros, Hydra, Ermioni, Spetses and Porto Heli at Gate E9.
The company suggests combining the trip with excursions to nearby Poros, Porto Heli, Spetses and Hydra. Wikipedia says a ferry connects Ermioni to Piraeus.
Vrisko Apostasi puts the road distance between Athens and Ermioni at 166 km. It estimates the travel time at 2 hours 48 minutes. Build a buffer between arrival and boarding for your Ermioni sunset cruise.
Wikipedia places Ermioni 10 km east of Kranidi, 22 km southwest of Galatas and 44 km southeast of Nafplio. Kranidi is the seat of the Ermionida municipality.
Taxi Ermioni says it runs two air-conditioned Mercedes cars with room for passengers and luggage. It states that it is available 24 hours a day, 7 days a week. Its transfer list names Ermioni, Kranidi, Thermisia and Porto Heli.
The same firm lists pickups from and to Athens International Airport, national bus stations and ports. Arrange the pickup point and time with the firm before your Ermioni sunset cruise.
Porto Cheli belongs to the same Ermionida municipality as Ermioni. Yacht charters from that town have their own page: Porto Cheli yacht charter.
What do travellers ask about an Ermioni sunset cruise?
Travellers ask about children, seasickness tablets, swimming after dark, wind cancellations and wheelchair access. Each answer below comes from a health, safety or transport source, so confirm the cruise operator’s own terms before booking.
Can children come on board?
Ask the operator of the Ermioni sunset cruise about age rules before booking. Maritime Safety Victoria says a child’s lifejacket needs to fit. Small children must not slip out in the water. It strongly recommends a crotch strap where possible.
Can I take seasickness tablets?
Ask a pharmacist before an Ermioni sunset cruise. The NHS says pharmacies sell tablets to prevent motion sickness. Dissolvable tablets exist for children, and patches suit adults and children over 10. Acupressure bands do not work for everyone.
Can passengers swim after dark?
Ask the skipper of your Ermioni sunset cruise whether a swim stop is planned after sunset. A Soundings safety guide covers being seen at night after going overboard. It says a priority after sunset is to have a light with you. Fasten it to the lifejacket, wear it as a head lamp or carry it in a pocket.
What happens if wind cancels the trip?
For the ferry, Hellenic Seaways says the tickets of a cancelled departure must be exchanged with a valid boarding card. The card applies to the next scheduled departure, pending availability. For an Ermioni sunset cruise, the operator’s terms set the rule, so ask before paying.
Is the boat wheelchair accessible?
Ask the operator of the Ermioni sunset cruise before booking. Ferryhopper says smaller vessels on short island routes can be inaccessible to certain passengers. It also says travellers with disabilities can ride Greek ferries once they have made arrangements with the ferry company.