If you want Crete, but with saltwater and shade, do this. This Dia Island luxury catamaran day pairs gourmet onboard lunch with calm-bay swimming and classic Aegean views.

I especially like that the food feels restaurant-grade (and fresh), and the boat setup is built for relaxing: plenty of room, real shade, and easy access to the water.

One thing to consider: the main meal is seafood-based, so you’ll want to request a meat or vegetarian option in advance if that matters to you.

Key things to know before you book

• Dia Island time in a protected bay where you can swim, snorkel, and try the water toys without the hassle of shore logistics
• Chef-prepared lunch on board, with menu flexibility (meat, vegetarian, kids options) when you request ahead
• Open bar included: local white wine, beer, soft drinks, and water, plus dessert and raki
• Modern catamaran comfort with WC for men and women, a shower, and even free Wi‑Fi if you need it
• More than snorkeling: SUP, canoe board, fishing gear, and inflatable sea toys are all part of the day

From Marina Café to Dia Island: how the day actually plays out

Your trip starts at Marina Café in Heraklion Port. A crew member meets you at the entrance and helps you check in, and I’d plan to arrive 15 minutes early because departure is exact. That matters because you’re not on a slow, wandering schedule. You’re on a “show up, get onboard, and enjoy Crete from the water” schedule.

Before you go anywhere, you get local treats and coffee plus a short safety briefing. It’s not heavy or scary. It’s the kind of briefing that helps you feel comfortable when you’re about to be out on open water with swimming time right after.

Koules Fortress and Rocca a Mare: quick photo power without wasting your day

The route is designed to give you instant “I’m in Crete” visuals before the long stretch of sea time. From the start, you’ll pass by historic landmarks around Heraklion—think Koules Fortress for the iconic views—and then the trip includes a photo stop at Rocca a Mare Fortress.

That Rocca a Mare stop is short (it’s timed like a quick postcard moment, not a museum visit). The payoff is that you see the coastline from the water with a clean, relaxed viewpoint, and then you move on before the day gets drained by long transfers or slow pacing.

The ride to Dia: relaxed cruising on a modern catamaran

Once you’re out beyond the harbor, you settle into the main catamaran cruising portion. The boat portion is long enough to feel like a real sea day, but not so long that you get bored. You’re on a comfortable, modern catamaran with the basics handled: WC for men and women, a shower, and free Wi‑Fi if you want to post a few photos.

A detail I really like here is the way the boat seems set up for sun and comfort at the same time. In reviews, people call out the shaded areas and tent-like coverage, which is exactly what you want for a multi-hour day where the sun can go from friendly to intense fast.

Dia Island in the water: snorkeling, swimming, SUP, and fishing

This is the heart of the experience: time at Dia Island, anchored in bays accessible by boat. Once you’re there, you’re surrounded by clear, turquoise water and an area that feels calm and protected. The whole point is that you’re not doing a rushed one-stop swim. You get a real block of time—about 3.25 hours—to play.

Snorkeling gear is included (and it matters)

You get high-quality snorkeling gear plus swimming vests, so you’re not trying to hunt for the right mask in a rush or carry your own setup. The seabed around Dia is full of life, and snorkeling here gives you a glimpse into the underwater world tied to the island’s myth and legend.

I’d treat the first 10–15 minutes like an intro session: get your bearings, find your comfort level, and then spend the rest of your time enjoying it.

Try more than snorkeling

Dia’s calm bay setup makes it easy to try extras like:

• SUP equipment
• canoe board equipment
• fishing gear
• inflatable sea toys and swimming noodles

If you want something a bit more active, these give you options that aren’t just “float and look.” And if you want low effort, you can just hang out in the water with the inflatables and focus on photos and sun time.

Sea scooter: optional, request-based

There is also a sea scooter option, but it’s not included by default. It requires advance booking and operates on a priority order system. If sea scooter rides matter to you, I’d request it early rather than hoping it’s available the day of.

Lunch on board: why the meal is a big part of the value

Here’s where this experience earns its top scores: the lunch isn’t a sad sandwich situation. It’s a freshly prepared Mediterranean seafood menu served onboard, and you get a premium, restaurant-style meal experience.

Drinks are part of it too. You’ll have unlimited water, soft drinks, local white wine, and beer as part of the all-inclusive bar. That means you don’t have to decide at every step whether you’re “doing the expensive tour thing.” It’s built into the day.

The chef touch

The chef onboard is a real highlight. In reviews, people name Chef Charis, and they’re impressed by the way meals feel freshly cooked and individualized. Examples mentioned include dishes like shrimp tempura risotto, and there’s also a story about the chef preparing a meat risotto even when some guests hadn’t requested a menu change in advance.

For vegetarian choices, reviews describe a traditional style preparation in a clay pot, which tells me they’re not treating vegetarian as a last-minute fallback.

If you have dietary needs, plan ahead

The main menu is seafood-based. If you need meat, vegetarian, or kids options, you should request it at least one day before the trip. That’s smart not just for preference—it’s for timing and how the meal is prepared onboard.

After lunch, you’ll have seasonal fruits, local dessert, and of course raki. It’s a nice wrap-up, because it turns lunch into a full Cretan mini-feast instead of a single plate and done.

Facilities and comfort: what makes a 5.5-hour sea day feel easy

A 5.5-hour boat day sounds simple until you’re on board sweating, getting splashed, and trying to rinse off. This one is built to feel smoother than many day cruises.

You get:

• Onboard WC for men and women
• Shower
• Free Wi‑Fi (helpful for checking messages, not necessary for enjoying the day)
• Swimming vests
• Plenty of onboard room and shade areas for sun-sensitive folks

And yes, the vibe is often described as luxurious and spacious. In reviews, people point out the modern look—sleek styling and lots of shaded coverage. That’s not just about looks. Shade changes the whole day. It lets you enjoy water time without turning the trip into a sunburn contest.

Wildlife spotting: the fun bonus when conditions cooperate

Dia and the route around Heraklion can be a good spot for wildlife watching, especially dolphins and seabirds. You’re not guaranteed anything—sea life follows the sea—but keeping your eyes up is part of the fun.

I like this kind of bonus because it doesn’t require extra effort. You’re already at sea. You just get a second reason to look around.

Timing and pacing: why this itinerary works for most people

This trip is structured around three main phases:

1. Check-in and harbor area start with snacks and a safety briefing
2. Short sightseeing/photo moment then cruising out
3. Dia Island anchored bay time with the big chunk of water activities and lunch
4. Return cruise to Heraklion

The pacing avoids the two extremes. It’s not so short that you miss the best part, and it’s not so long that you’re stuck on a boat with nothing to do.

Also, the day is timed to deliver golden Aegean light on the way back. Reviews include people mentioning an unforgettable sunset feeling. Even if the exact light varies, the idea is the same: you’re leaving with photos and atmosphere, not just sun and seawater.

Price and value: is $122 per person worth it?

At $122 per person for about 5.5 hours, you’re paying for a package, not just transportation. The value comes from stacking several big-ticket items together:

• Restaurant-quality lunch cooked onboard
• Open bar (white wine, beer, soft drinks, water)
• Dessert and raki
• Snorkeling gear and swimming vests
• Multiple water activities: SUP, canoe board, fishing gear, inflatables
• Modern boat comfort with shower and restrooms
• Professional English-speaking crew

Many boat days include one or two of these. This one includes most of them, so you don’t end up spending extra for basic upgrades while you’re already on the water.

The only real “cost” you should budget for is your time: this is not the kind of tour you tack on if you’re trying to cram a whole day of land sightseeing. It’s a full sea-day experience. Treat it like that and it feels like a win.

Who should book this Dia Island catamaran day (and who might not)

This is a strong fit if you want:

• A luxury-feeling day at sea with real comforts
• A food-forward tour (not just snacks)
• Clear water time for snorkeling and swimming
• Onboard options beyond swimming, like SUP, fishing, or canoe boards

It’s also good for people who don’t want to rent gear or coordinate multiple activities. The onboard setup handles the basics for you.

You might choose something else if:

• Seafood is a strict no for you and you’re worried about how alternative meals work. (You can request alternatives, but you do need to plan ahead.)
• You’re expecting a full-day hike or a major land sightseeing program. This is mostly about the sea and Dia Island bay time.

Should you book? My call

If you’re in Heraklion and you’re choosing between “a boat ride” and a true sea-day experience, I’d book this one. The combination of chef-prepared lunch, a real included bar, and long enough Dia Island water time makes it feel complete. Add the modern comfort (WC and shower) and you’ve got a day that doesn’t turn into chaos the moment you get wet.

I’d book especially if you care about eating well while on holiday. Crete is famous for food, and this tour lets you taste that without sacrificing the ocean part.

FAQ

Where does the catamaran depart from?

The meeting point is at Marina Café in Heraklion Port. A crew member welcomes you at the entrance and guides you to the boat for check-in.

How long is the experience?

The total duration is listed as 5.5 hours.

What food and drinks are included?

You get a freshly cooked Mediterranean seafood lunch (with meat, vegetarian, or kids menu options available), seasonal fruits, local dessert, and raki. Drinks include unlimited water, soft drinks, local white wine, and beer.

Is there a vegetarian or non-seafood option?

Yes. The main menu is seafood-based, but you can request meat (chicken), vegetarian, or kids menu options by informing the reservation department at least one day before.

What water activities are included?

Snorkeling and swimming are included, along with snorkeling gear and swimming vests. You can also use SUP equipment, canoe board equipment, fishing gear, and inflatable sea toys (like swimming noodles).

Is a sea scooter included?

Sea scooters are not included by default. They require advance booking, and priority is respected.

What onboard facilities are available?

The catamaran includes a WC for men and women and a shower. Free Wi‑Fi is also available.

Do I need to bring anything?

Bring a hat, swimwear, a towel, camera, sunscreen, and water.

Are pets allowed?

No, pets are not allowed.

Is cancellation free?

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