Dia island is the uninhabited, lizard-shaped island off Heraklion, reached on day cruises that anchor in its south coves for swimming, snorkelling and lunch. Tours across the rest of the country are listed on Greece Tours.
The sections below cover where Dia lies, the cruises you can book, the coves, the myth, the old port, the wildlife, the activities, the sunset sailing, food, boats, length, rules, packing and booking for Dia island, with links into the Heraklion pages. The tours shown are checked on GetYourGuide and Viator.
Where is Dia island, and what does it look like?
Dia island lies off the north coast of Crete, about 13 km north of Heraklion. It measures 5 km long and 3 km wide. No one lives there. From the city, the shape looks like a giant lizard resting on the sea.
Locals call the island “Ntia” as well as Dia. It belongs to the community of Elia, in the municipal unit of Gouves. That sits in Hersonissos municipality, inside the Heraklion regional unit.
The lizard shape is easy to spot on a clear day. Look north from the harbour front in Heraklion and scan the horizon. The long low outline reads like a body with a tail.
Which Dia island cruises can you book?
Twenty-three Dia island cruises sell on GetYourGuide, and six more run on Viator. All listed trips leave from Heraklion unless the title names another port. Titles and lengths vary, so read each listing before booking.
The names below are exact. Times show the range given on each listing. Pick the option that fits the day plan. For a clear overview of the main route, see the Heraklion Dia island cruise page.
- Heraklion Dia Island Small Group Sailing & Dining Experience — 5.5 hours
- Heraklion: Sailboat Cruise to Dia Island with Drinks & Lunch — 4.5 to 6.5 hours
- Heraklion Sailing Cruise to Dia Island, All Inclusive — 5.5 hours
- Dia Sailing Cruise With All-inclusive Meal And Drinks — 5.5 hours
- Day at Sea, Dia Island Sailing Cruise — 4.5 to 7 hours
- Heraklion: Sunset Sailing Cruise Dia Island — 4.5 hours
- From Heraklion: Dia Island Full-Board Sailing Cruise & Swim — 5.5 hours
- Heraklion: Sailing Trip to Dia Island with Lunch & Swimming — 6 hours
- From Heraklion: Private 4.5-Hour Sailing to Dia Island — 4.5 hours
- Dia: Day & Sunset Cruise with a Menu by Greece’s Top 50 Chef — 5.5 hours
- Heraklion: Dia Catamaran Fun Cruise with Slide, Meal & Drinks — 5 to 7 hours
What are the four south coves of Dia island?
The south coast of Dia island holds four coves in a row. From west to east they are Agios Georgios, Kapari, Panagia (Madonna) and Agrielia. A fifth cove, Aginara, sits further east. Boats anchor in these sheltered spots.
Read the coast from west to east to keep the order clear. Agios Georgios comes first. Kapari follows. Panagia is also called Madonna. Agrielia closes the main group. Aginara lies beyond them to the east.
These coves have served as anchorages since the Minoan period. That long record tells a visitor the south shore offers calm holding ground. Watch the shoreline as the boat approaches. The shape of each inlet explains why sailors chose it.
- Agios Georgios — the westernmost of the four south coves
- Kapari — the second cove from the west
- Panagia (Madonna) — the third cove, known by two names
- Agrielia — the easternmost of the four south coves
What does the myth of Dia island say?
The myth says a giant lizard tried to destroy Crete. Zeus struck it with a thunderbolt and turned it to stone. That stone became Dia island. The story fits the lizard shape seen from Heraklion.
In Minoan times the island stood in view from Knossos, the palace south of Heraklion.
Older stories name Dia as the place where Theseus fled after he killed the Minotaur. This claim adds a second layer to the myth. It ties the island to one of the oldest tales of Crete.
How long was Dia island a port of Crete?
Dia island served as the main port of Crete for centuries. The old name Standia comes from the Greek words “stin Dia”, meaning “on Dia”. Sailors used the south coves as anchorages from the Minoan period onward.
That long service shapes how the island reads today. The coves on the south shore still show why ships stopped here. The name Standia kept the memory of the port alive in later maps.
In the 20th century, the diver Jacques Cousteau explored the sea between Heraklion and Dia. He found remains of an ancient port on that seabed. The find supports the old record of the island as a harbour.
Which wildlife lives on Dia island?
Dia island shelters protected animals and plants, so wildlife viewing is a real part of any visit. The land snail, the lizard, a wild rabbit subspecies and Eleonora’s falcon all live here. This makes the island a special place to watch nature.
BirdLife International lists the island as an Important Bird Area. The reason is the falcon colony. Between 300 and 380 pairs of Eleonora’s falcon breed on the cliffs. In Greek, this bird is called “mavropetritis”.
The island also belongs to the Natura 2000 network. It is a protected hunting ground as well. These rules help the animals stay safe. Visitors watch quietly and keep their distance from nests and rocks.
Plants are protected too. One thistle, Carlina diae, carries the island in its name. Look for it while walking along the shore. It grows in dry, rocky ground.
- Albinaria retusa, a land snail
- Podarcis erhardii schiebeli, a lizard
- Oryctolagus cuniculus cnossius, a wild rabbit subspecies
- Eleonora’s falcon, known as “mavropetritis”
- Carlina diae, a thistle named after the island
What do you do at Dia island?
On a trip to Dia island, guests swim, snorkel, paddle, fish and relax on the beach. Snorkelling gear is provided on board. Walking along the shore is another simple way to spend time. Every activity suits a different mood.
Snorkelling is a key part of the day. Gear is ready on the boat, so there is nothing to carry. Clear water around the rocks makes it easy to see fish. For more detail, read about snorkeling in Crete.
Stand-up paddleboarding is another option. Boards are on board for guests to use. It is a calm way to move over the water. Tips for the sport are in this stand-up paddle in Crete page.
Fishing comes with the private sailing and the sailing trip with lunch and swimming. One catamaran cruise adds underwater sea scooters and a water slide. Beach time and shore walks fill the rest of the day.
What does the sunset cruise to Dia island show?
A sunset sailing to Dia island ends the day with the sun going down over open water. Guests watch it from the deck after swimming and paddleboarding. The full-board sailing cruise closes this way. It is a calm end to an active afternoon.
One option is the sunset sailing cruise from Heraklion. It mixes snorkelling, beach time and paddleboarding with food and drinks. All of that happens before the sun sets. The boat stays out on the water for the view.
Another choice runs as a day or a sunset sailing. It uses the largest catamaran in the area. A menu by a top Greek chef comes with it. Guests pick the time that suits their plans.
The catamaran fun cruise takes a different shape. It runs in the morning or the afternoon, not at sunset. That makes it a good fit for early risers. Sunset sailing is not the only way to see the island.
What food and drinks come on a Dia island cruise?
Food on a Dia island cruise is a full meal, not just a snack. All-inclusive sailing trips serve a traditional Mediterranean or Greek meal with drinks. Other boats add fruit or a chef menu. Guests eat well without leaving the water.
One chef cruise serves a menu by Giorgos Chronakis. He is named one of Greece’s top 50 chefs. A premium open bar comes with the meal. That trip suits guests who care about food.
The private sailing trip takes a lighter approach. It serves unlimited drinks and fresh fruit. It works well for a short, easy outing.
The catamaran fun cruise sits in the middle. It serves a Mediterranean meal with an open bar. Guests eat on deck after swimming. Food and drink are part of the ticket, not extra.
Which boats sail to Dia island?
Four kinds of boat sail to Dia island, from sailing yachts to catamarans and a luxury yacht. Shared and private sailing trips use sailing yachts. One catamaran is the largest in the area. Another adds sea scooters and a water slide.
The full-board sailing cruise runs on named sailboats. Two of them are TREATON and JACKPOT. Both carry guests on shared trips. Small groups keep numbers low on the trip with the highest count of reviews.
The chef cruise uses the largest catamaran in the area. It sails as a day or a sunset trip. Space on deck is generous. That suits guests who want room to move.
Other boats add their own style. A luxury yacht runs the sailboat cruise with drinks and lunch. One catamaran was the first for this island route with sea scooters and a slide.
- Sailing yachts on shared and private sailing trips
- TREATON and JACKPOT, the sailboats on the full-board cruise
- The largest catamaran in the area, used for the chef cruise
- The first Dia catamaran with sea scooters and a water slide
- A luxury yacht on the sailboat cruise with drinks and lunch
How long does a Dia island trip last?
Trips to Dia island run from one hour to seven hours, so every traveler finds a fitting option. The shortest is a one-hour coastal sail off Heraklion. Longer cruises reach the island and stay at anchor for swimming, lunch and rest.
Dia lies about 13 km north of Heraklion, so the crossing takes little time. That means the main part of each trip is spent at anchor, not under sail. Check the listed length before booking, since it sets how long the day runs.
- One-hour coastal sail off Heraklion
- Private sailing and sunset sailing: 4.5 hours each
- Small-group, all-inclusive, full-board and chef cruises: 5.5 hours
- Sailing trip with lunch and swimming: 6 hours
- Catamaran fun cruise: 5 to 7 hours
- “Day at Sea” cruise: 4.5 to 7 hours
What rules apply on Dia island?
Only day trips are allowed on Dia island, and camping overnight is not allowed. No cars run on the island and nobody lives there. Visitors arrive by boat and leave with their group the same day.
The island is a Natura 2000 site and a protected hunting ground. It shelters protected birds, lizards, snails and plants. Walk only where the crew allows. Take all rubbish back to the boat, and leave shells and stones in place.
Plan the visit as a daytime outing only. There is no place to sleep and no road network. Follow the crew’s instructions on where to walk and where to swim.
What do you bring on a Dia island cruise?
Pack swimwear and a towel, sunscreen, a hat and sunglasses, plus any medication needed. Add a waterproof phone pouch for the boat and the swim. A light layer helps on the evening breeze during the sunset sailing.
Snorkel gear and paddleboards are provided on board on the sailings that list them. Check the listing before packing your own set. Meals and drinks are included on the all-inclusive and full-board cruises, so no food shopping is needed there.
Keep the bag small, since space on deck is limited. Store valuables in the waterproof pouch. Dress in light clothes that dry fast after a swim.
- Swimwear and a towel
- Sunscreen, hat and sunglasses
- Light layer for the evening breeze
- Waterproof phone pouch
- Any personal medication
How do you book and cancel a Dia island cruise?
Book online through GetYourGuide or Viator. Pick the date, then choose the morning or sunset sailing where offered, and select shared or private. Payment happens online at booking. The confirmation email lists the meeting point and the operator’s contact details.
The meeting point is Heraklion port or the marina, as stated in the listing. Read the email before travel and note the exact spot. Save the operator’s phone number in case of a change.
GetYourGuide free cancellation runs up to 24 hours before the start on listings that offer it. Check the terms on the page you book from. Sailings depend on the wind, and the operator moves or cancels a trip in strong wind.
Keep plans flexible on the day. Wind can shift the schedule. The operator contacts passengers using the details from the booking.
Frequently Asked Questions
Are there shops or places to sleep on Dia island?
No. Dia island has no shops, tavernas or hotels, so bring what you need for the day. Only day trips are allowed and camping is not permitted. Plan to eat on the boat or before departure, and return with your group.
Where do the boats leave from?
Boats leave from Heraklion, and two catamaran cruises also start in Gouves and Hersonissos. The confirmation email names the exact meeting point at the port or marina. Check that point before travel, since it differs between operators and listings.
Can children join a Dia island cruise?
Children join family cruises, and each listing sets its own age rules. Read the age limits before booking, since they vary by operator and boat. Ask the operator directly if the rules are unclear. Family trips suit younger travelers when the listed ages match.
Can you see the island from the mainland?
Yes. The island can be seen from Heraklion on a clear day. Look north from the waterfront when the sky is bright. Seeing it first shows how short the crossing to Dia island will be.