Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch

Review · DIA ISLAND CRUISES

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch

4.7 · 33 reviews 7 hours From $115 Operated by altersail.gr · Bookable on GetYourGuide
Book on GetYourGuide →

Dia Island feels like a private cove.

This 7-hour cruise from Heraklion takes you to the uninhabited Dia Island nature reserve (protected under Natura 2000), where you can swim in clear water and work snorkel gear with a calm, expert crew. I especially liked the small-group feel (max 10 people), which makes it easier to ask questions and time your swims without feeling rushed. One thing to keep in mind: the day is heavy on water time, so if you’re hoping for a very deep explanation of the island’s wildlife and plants at each stop, you may want to come with specific questions.

The lunch is a real plus—fresh and local, served on board—but expect it to be hearty rather than fancy, and you might notice some people wish there had been a dessert or more detail about the ecology between swim breaks.

Key highlights you’ll feel from start to finish

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Key highlights you’ll feel from start to finish

  • Small-group yacht day (10 max): easier pacing, more personal attention, less crowd energy.
  • Dia Island Natura 2000 protection: uninhabited shorelines with rare habitats, plants, and nesting spots.
  • Three swim/sail stops: Agrilia Bay, Panagia Cove, and Agios Georgios each with a different feel.
  • Snorkeling + SUP included: gear is provided, so you can go from boat to water quickly.
  • Fresh lunch on board: organic-style meal with local ingredients plus unlimited drinks and wine served responsibly.
  • Wildlife you might spot from the boat: falcons nesting areas, possible Kri Kri, and dolphins on the return.

Heraklion to Dia Island: the real appeal of this day trip

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Heraklion to Dia Island: the real appeal of this day trip
This isn’t just a cruise that drops you off near a beach. The point is to spend a full day out in the protected zone north of Heraklion, on a route that keeps you moving between the best water and the most interesting corners of Dia Island.

Dia Island sits about 7 nautical miles north of Heraklion, and it’s uninhabited. That matters, because you feel the difference: fewer crowds, more silence, and water that stays clear enough for snorkeling to actually be fun.

From the moment you arrive at the Old Venetian port area, the day has a simple structure. You meet the crew, get a safety and boat-handling briefing, then you head out—so you’re not wasting the morning trying to figure out how the day works.

The boat, crew, and transfer setup (what makes it smooth)

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - The boat, crew, and transfer setup (what makes it smooth)
You’ll sail on a comfortable sailing yacht, and the crew is local and experienced. They run the day in a way that feels organized rather than chaotic, with clear instructions before you start doing the fun stuff—swimming, snorkeling, and using included boards.

Pickup is part of the deal. If you’re in Heraklion, transfer is free, and the provider will contact you by email after booking to confirm the pickup time and meeting point. If you’re farther out (beyond 5 km from the port), there may be an extra transfer cost.

Small group size is more than a marketing line. With a max of 10 people, it’s easier to get questions answered on the spot—especially when you’re looking at sea life and trying to understand what you’re actually seeing.

Dia Island stop 1: Agrilia Bay and the smell of wild oregano

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Dia Island stop 1: Agrilia Bay and the smell of wild oregano
Your first stop is Agrilia Bay, one of the more remote areas of the island. The goal is to avoid crowds, and the “remote beach” concept works here—you get a quieter start before the day gets busy.

As you approach, you can even smell wild oregano from the boat. That little detail tells you something important: Dia Island is about natural texture, not just scenery.

You’ll have around an hour here, which is a good length of time for a first swim and a first snorkel session. If you want to ease into the water, this is the best moment to do it, because you’re still fresh and the day’s rhythm hasn’t built up yet.

Practical tip: if you’re new to snorkeling, use this first stop to test your comfort. Get used to the gear and breathing at a calmer pace before you move on to the next coves.

Dia Island stop 2: Panagia Cove, nesting falcons, and a Kri Kri sighting chance

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Dia Island stop 2: Panagia Cove, nesting falcons, and a Kri Kri sighting chance
Next up is Panagia Cove, known for green, crystal-clear water. This stop leans into conservation—Dia Island is a refuge for native plants and animals with very limited range in the southern Aegean.

This bay is also linked to falcon nesting. You may not be able to see nesting activity from the water at all times, but the crew can point out what to watch for and why the protected status matters.

You also have a chance to spot a Kri Kri. That’s the local name for the Cretan wild goat. The key word is chance, not guarantee—so treat it like a bonus if it happens, not a reason to expect it.

One more reason Panagia Cove feels special: it’s a break from the typical “swim and move on” cruise schedule. The environment here is part of the story, not just a background for photos.

Dia Island stop 3: Agios Georgios, Minoan port history, and open-water views

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Dia Island stop 3: Agios Georgios, Minoan port history, and open-water views
Your last stop is Agios Georgios, one of Dia’s most popular crystal-clear beaches. Even if you skip snorkeling for a moment, you’ll likely want to spend time just floating and watching the water edge.

There’s also a history angle here. The cove was a major Minoan port, and Jacques-Yves Cousteau is credited with discovering remains there in 1976. You’ll often get more meaning out of water-and-rock places like this when you know what ancient people used them for.

The day’s timing also works: after two earlier water stops, you get one more chance to swim with fresh energy. This is also typically where you’ll see the day shift from water-first to food-first, since lunch follows during the later part of the outing.

If you like your history light but not absent, this is a good balance. You get a clear fact to hold onto while you’re in the water.

Snorkeling gear, SUP boards, and how to make the most of your time

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Snorkeling gear, SUP boards, and how to make the most of your time
Snorkeling equipment and SUP boards are included, which is a big value boost. You don’t have to hunt for rentals around Heraklion, and you can switch between activities without losing time.

How to get the most out of it:

  • Use the water breaks in sequence: quick swim, then snorkel, then a calmer float to reset.
  • If you’re sensitive to cool water, start your snorkel time shorter and build up.
  • For SUP, the best approach is to go only when conditions feel stable and you’re comfortable balancing.

Because Dia Island is protected and uninhabited, you’re not seeing “resort” snorkeling. You’re seeing the sea as a habitat. Keep your expectations realistic: the goal is to spot sea life and enjoy clear water, not to chase a specific underwater scene.

Also, check the basics: you’ll want a towel and sunscreen ready so you’re not scrambling right after you get back on board.

Lunch on board: fresh local ingredients and what you should expect

Heraklion: Nature Reserve Dia Island Full-Day Cruise & Lunch - Lunch on board: fresh local ingredients and what you should expect
Lunch is freshly prepared from fresh, local ingredients, served exclusively for your group on board. Drinks are also included throughout the outing: unlimited mineral water and soft drinks, plus wine served in responsible consumption.

This is one of those “you’ll remember it later” parts of the day. Eating on a sail yacht, with salt air still on you, makes lunch feel like a pause rather than a chore.

That said, it’s still a cruise lunch. Based on what people have said, it’s satisfying and good, but don’t expect it to feel like a full multi-course restaurant meal. One note to keep in mind: some people wished dessert had been included, so if that matters to you, plan a sweet stop for later back in Heraklion.

Vegetarian lunch is available upon request, which is worth planning for in advance so the crew can handle it smoothly.

Eco-friendly route: why it matters on a sailing day

The route is described as eco-friendly for nature lovers, and the logic is pretty straightforward. When you’re sailing a protected-area itinerary, you’re spending time where habitats matter and where minimizing disruption is the point.

You’ll also learn about biodiversity, local history, culture, and traditions along the way. You can treat this as context for what you see—why certain bays are important, why the island is protected, and why wildlife presence affects conservation.

If you’re the kind of traveler who wants every scientific term, you might find your questions are the best part of the learning. Still, even casual context helps you look at the island as a living place rather than a pretty backdrop.

Price and value: is $115 worth a full day on Dia?

At about $115 per person for 7 hours, you’re paying for a package that includes a premium sailing yacht experience, a small group, local crew, and more than just sightseeing. You get transfers from Heraklion, unlimited non-alcoholic drinks, wine served responsibly, lunch, snorkeling equipment, and SUP boards.

That combination is the real value story. Many day trips only include transportation and maybe a snack, leaving you to pay separately for gear or food. Here, your day is built around water time with included activities.

When it feels worth it:

  • You plan to snorkel and actually use the included gear.
  • You want a low-stress day with pickup and a guided flow.
  • You value peace and protected nature over crowds.

When you might rethink it:

  • If you’re mostly looking for a land-based hike or lots of guided lectures, the day is more about sea time and swim breaks than on-shore touring.

Who this cruise fits best (and who should skip it)

This is a great fit for couples, friends, and solo travelers who want a classic Crete sailing day with structured stops and included gear. It’s also a strong choice if you like nature-focused travel but don’t want the hassle of planning snorkeling locations yourself.

You should skip it if you use a wheelchair, since it’s not suitable for wheelchair users. It’s also not suitable for people over 264 lbs / 120 kg, based on the provided limitations.

If you’re comfortable in and around the water, this day is built for you. If you’re nervous about snorkeling, you can still enjoy plenty of time swimming and relaxing between stops—snorkeling gear is included, but you’re not forced into it.

Practical notes before you go

Bring what you’d expect for a full day in the sun and salt air. You’ll want a sun hat, swimwear, a towel, and sunscreen. A passport or ID card is required.

Also, don’t show up planning to carry alcohol or drugs. Alcohol and drugs are listed as not allowed, even though wine is included in responsible consumption. If you want to stay totally dry, you can rely on the unlimited mineral water and soft drinks.

Finally, keep your day flexible if you need extra pickup logistics. Pickup is handled via email after booking, and extra charges can apply if you’re outside the stated pickup radius.

Should you book the Heraklion: Dia Island full-day cruise?

If you want a calm, nature-focused day that mixes snorkeling, clear-water coves, and a real meal on board, this is an easy yes. The small group size, included snorkeling/SUP gear, and protected Dia Island itinerary make it feel like more than a basic sightseeing boat trip.

Book it if:

  • You’ll use the included snorkeling equipment and spend real time in the water.
  • You like uninhabited, protected places where the day is more about nature than crowds.
  • You want lunch and drinks handled for you on a 7-hour sailing day.

Maybe hold off if:

  • You mainly want lots of detailed land explanations and long shore time.
  • You’re very sensitive to simpler meals and would prefer a dessert as part of the included lunch.

FAQ

FAQ

Where does the cruise depart?

You meet the crew at the Old Venetian port area and board the yacht there.

How long is the Dia Island cruise?

The experience lasts about 7 hours.

How many people are on the yacht?

It’s limited to a small group of up to 10 participants.

Do I get pickup from my hotel?

Yes, transfer is included from Heraklion. If you are more than 5 km from the port, there may be an extra transfer cost.

What activities are included once we reach Dia Island?

You can swim and snorkel at the island stops, and snorkeling equipment is provided. SUP boards are also included.

Is lunch included, and do they offer vegetarian options?

Yes. Lunch is included, and there is a vegetarian option available upon request.

Are drinks included?

Mineral water and soft drinks are included unlimited. Wine is included as well, with responsible consumption.

What should I bring with me?

Bring your passport or ID, sun hat, swimwear, a towel, and sunscreen, plus beachwear.

Is the tour suitable for everyone?

It’s not suitable for wheelchair users, and it’s not suitable for people over 264 lbs (120 kg).

Is cancellation flexible?

Free cancellation is offered up to 24 hours in advance for a full refund.