Reviewed · DIA ISLAND CRUISES
Dia island : Small Group Sailing Trip to Dia Island with Lunch
Dia Island is the kind of stop that feels a bit like a secret, even though it is just off Heraklion. You sail out from the Old Venetian port, anchor in protected coves, and spend your time in clear water with a real shot at seeing Cretan wildlife up close.
What I love most is that this trip builds in hands-on time, not just sightseeing. You get included snorkeling gear and SUP boards, plus a crew that genuinely helps you use them. One thing to keep in mind is that the bay you anchor in, and what you see underwater, can shift with weather and sea conditions.
Key things to know before you sail to Dia Island

- Dia Island is protected nature: It is part of the Natura 2000 program, so the focus is wildlife and habitat, not crowds.
- You get a real swim window: About 1.5 hours anchored at either Agios Georgios or Panagia bay, depending on conditions.
- Snorkeling and SUP are included: Bring your swimsuit but expect the crew to supply the gear and quick help.
- Lunch is part of the deal: An organic meal is served onboard, along with unlimited drinks (with wine for adults).
- Small group size: Up to 10 travelers, so the boat feels lively but not packed.
- Pickup is part of the value: Transfers are free up to 10 km from Heraklion, which saves time and hassle.
Sailing from Heraklion to Dia: the part most people underestimate

The experience starts at Cafe MarinaLeof. Nearchou, in Heraklion. You meet the crew at the Old Venetian port, get a safety briefing, and learn the basics of boat handling before you head out. Then the sail begins, and the trip to Dia is almost one hour.
This matters because you are not just commuting to a beach. You are settling in on the water first, which makes the island time feel easier and more relaxed. And since it is a protected site, the boat-and-bay approach keeps things low-key compared to land tours.
Dia Island sits about 7 nautical miles north of Heraklion, and it is uninhabited. That means your time there is about the coves, the sea life, and the natural surroundings, not buildings or services.
More cruises out to Dia:
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Dia Island wildlife: what you can hope to see, and why it is special
Dia is protected for its biodiversity under the Natura 2000 project. The point is that the island is a living system, not a postcard rock. If the day is right, you might spot the medium-sized Falco Eleonorae (a type of bird), the lizard Podarcis erchardii schiebeli, and wild goats Capra Aegagrus Cretica.
The big wildlife thrill is the chance of marine animals. The trip is set up to help you look for dolphins, and the protected status also matters for species like the monk seal Monachus monachus. Realistically, wildlife sightings are never guaranteed, but the crew’s focus on the right spots makes the “maybe” feel earned.
I also like that the island’s name is practically synonymous with conservation vibes. You are learning how to enjoy the place without turning it into a checklist sprint.
The anchor bays: Agios Georgios or Panagia, and what changes

After the sail, you anchor on the south side of Dia in either Agios Georgios bay or Panagia bay. Which one you get depends on weather conditions. Both coves are known for green, crystal-clear water, which is exactly what you want for swimming and snorkeling.
This is not a long port stop. The time you spend at anchor is about 1.5 hours, and it is built for movement: swim, snorkel, sunbathe, and often paddleboard too. If you like a schedule that gives you water time first, this format works.
A practical note: because the bays are chosen based on conditions, your experience might feel slightly different day to day. If you have strong sea legs and a strong sense of adventure, you will roll with it. If you get easily seasick, you may want to plan your day around a period when seas are calmer.
Swim, snorkel, and SUP: the included gear and how to get the most from it
You will have about 1.5 hours in the water. The crew provides snorkeling equipment and SUP boards, and they tend to give clear guidance for first-timers. One person described getting helpful instruction on paddleboarding, which is exactly what you want when you are trying something new on open water.
In addition to snorkeling, you can simply swim right from the boat or float in the cove. Life jackets are provided, and the crew is there to help you feel comfortable, especially if you are not a confident swimmer.
One review said snorkeling gear quality can vary, and that the older sets were an issue on a specific sailing. On a current trip, the safer move is to ask the crew which sets are freshest if you are picky about fit and comfort. Also, do not count on giant movie-scene underwater visibility everywhere. Clear water helps, but what you see depends on the day’s conditions.
If you are traveling with kids, this water block is often the highlight. Several people mentioned family-friendly fun, with enough time for everyone to rotate between swimming, snorkeling, and paddleboarding.
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Lunch on the boat: organic meal, drinks, and the pacing that works

The best thing about lunch here is that it is not an afterthought. You get a delicious organic lunch onboard, and it is timed so you can swim first, eat second, and then still enjoy the return sail.
People reported a Greek salad and chicken souvlaki style meal, which fits the Cretan rhythm. There is also seasonal fruit, and drinks are included: mineral water and soft drinks are unlimited, and wine is available for adults (minimum age 18, since alcohol is offered).
You should expect a responsible pace with the wine. The setup is practical: drink if you want, stay clear-headed if you are the designated swimmer or photographer. The boat is also set up for breaks, so you can shade out when you need it.
A small detail I appreciate is how the crew handles onboard comfort. One sailing description noted shaded and sunny seating areas, a clean bathroom, and a relaxed flow after the swim. On a half-day boat trip, those comfort basics make the difference between fun and fatigue.
The crew experience: skippers who teach, joke, and help you feel at ease

This is a small group trip, maximum 10 travelers, so you get real crew interaction instead of a distant “good luck” vibe. The safety briefing includes boat handling basics, and you are not left guessing where to stand or how to move safely.
Several people specifically praised skippers and crew members by name, including Costas and Dimitris, and also Mario and Alexander. Other reviews mentioned Antonis and Harris, plus George and Harry. Across the board, the consistent theme is attention, friendly professionalism, and a willingness to explain what you are seeing.
There is also room for special moments. One review described the skipper letting them drive the boat for a few minutes, plus sharing an Ancient Greek myth on the ride back. Another mentioned the crew helping make a birthday feel like a small ceremony onboard, with a song and coordinating a cake pickup. These are not guaranteed, but the fact that they can happen tells you the crew treats your day as more than a checkbox.
If photos matter to you, that is another plus. One guest said the team helped take photos so everyone had plenty, not just the first row.
Price and logistics: why $72.59 can be a fair deal

At about $72.59 per person, this can feel like good value because the price bundles what is usually separate. You are getting the sailing cruise experience, certified crew, first aid certification and life jackets, plus the big-ticket “sea time” items: snorkeling gear and SUP boards. Lunch is included with vegetarian options, and drinks are unlimited, including wine for adults.
The pickup component is often the quiet deal-maker. Transfers are free up to 10 km from Heraklion, and the taxi or van waits outside your hotel main entrance. If you are farther out, the data says extra cost applies, with a minimum 20€ for pickup beyond 10 km.
What you should bring (and what you can skip)
- Bring a swimsuit, sunscreen, and a beach towel since these are not included.
- If you are a casual snorkeler, the provided gear will likely be fine.
- If you are an obsessed gear person, consider bringing your own mask or snorkel, or at least be ready to adjust quickly.
Also, the itinerary can vary based on weather. That is normal for a nature-focused sail, but it does mean you should avoid rigid plans immediately afterward.
Who this Dia Island trip is best for

This is ideal for people who want a half-day water getaway with a natural setting. If you like swimming, snorkeling, or trying paddleboarding for the first time, you will use the included gear.
It also suits families in a practical way. You have a clear time window to play in the water, and the small group format helps kids stay engaged. Several descriptions noted kids having a great time, and crew members being accommodating.
If you want quiet, this helps too. Even though multiple boats can share the same general anchoring area, the coves themselves are chosen for their calmer setup and protective nature. The result is often a more peaceful feel than a crowded beach shore.
Two fit considerations to take seriously:
- Moderate physical fitness is required, and swimming is part of the fun.
- The tour is not suitable for people over 275 lbs (125 kg).
If you are someone who hates uncertainty, you might find the weather-dependent anchoring decision annoying. I see it as part of the deal with sailing, but you should know it up front.
Should you book Altersail’s Dia Island sailing trip?
Book it if you want the best kind of Crete mix: short sailing time, protected nature, real water activities, and lunch plus drinks included. At this price point, the value comes from the bundle, especially pickup up to 10 km and the included snorkeling and SUP gear. You are also likely to feel the small-group difference, since the boat caps at 10 travelers.
Skip it or rethink it if snorkeling is your top priority and you are very picky about gear comfort. One sailing had equipment complaints, so if you are sensitive to fit, ask the crew what you will be using before you get in the water. Also, if you get seasick easily, plan for a weather-aware day and consider how you handle short sail segments.
If Dia is on your list, I would book it sooner rather than later, since the average booking window is about a month. For a half-day outing that feels like a mini nature escape from Heraklion, this is a strong bet.
FAQ
What is the duration of the Dia Island sailing trip?
It runs for about 4 hours 30 minutes.
Do they pick you up from your hotel in Heraklion?
Yes. Pickup is included for locations up to 10 km from Heraklion port. You will be picked up outside your hotel main entrance, and the pickup time and point are arranged by email after booking.
Where does the tour start?
The meeting point is Cafe MarinaLeof. Nearchou, Iraklio 712 02, Greece. The activity ends back at the meeting point.
What is included in the price?
The trip includes the sailing cruise, professional certified crew, first aid certification, life jackets, lunch (with a vegetarian option), unlimited drinks (mineral water and soft drinks), wine for adults, snorkeling equipment, SUP boards, and an eco friendly route.
Is there alcohol on board?
Wine is included, but alcohol is only for adults 18+. Life jackets and safety briefing are still part of the experience for everyone.
What wildlife and animals are you hoping to see?
Dia is a protected Natura 2000 site. The experience highlights the chance to spot dolphins, monk seals, and also birds and land wildlife such as Falco Eleonorae and wild goats.
What activities will you do on Dia Island?
You will have time to swim, snorkel, sunbathe, and use SUP boards. The trip also includes refreshments and seasonal fruit during the water time.
What should I bring since it is not included?
Beach towel, swimsuit, and sunscreen are not included.
What is the maximum group size?
The tour has a maximum of 10 travelers.
What happens if weather is bad?
This experience requires good weather. If it is canceled due to poor weather, you will be offered a different date or a full refund.
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