Spend a relaxed day aboard a luxury catamaran from Heraklion to the uninhabited Dia Island. Swim, snorkel, SUP, fish, and enjoy a Mediterranean lunch on a semi-private six-and-a-half-hour cruise.
More ways to explore the area's outdoor wonders
You step aboard a modern catamaran at Heraklion's port as the city slips astern and the Aegean widens into a glittering plain. Sea spray cools the air, teak underfoot, and the crew offers coffee while the catamaran eases toward Dia Island's uninhabited bay—arrival scheduled around 10:40 on the standard itinerary.
Difficulty
easy
Duration
6–7 hours
Fitness Level
Suitable for most fitness levels; basic mobility and comfort getting on/off a boat are recommended; swimming skills advised for water activities.
Wildlife
History
Dia appears on Venetian and Ottoman charts as an important landmark off Heraklion; historically it served local fishermen and as a navigation point rather than a settlement.
Conservation
Operators commonly advise reef-safe products and limit landing to protect fragile Posidonia meadows; practice leave-no-trace and avoid anchoring on seagrass where possible.
Reserve your spot on the Heraklion to Dia Island: Semi-Private Luxury Catamaran Cruise today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Protect marine life and your skin—apply before boarding and reapply after swimming.
Book early morning slots
Morning departures usually mean calmer seas and clearer snorkeling visibility.
Pack a light wind jacket
Sea breezes can be cool returning to port in the afternoon; a thin layer prevents chills.
Prepare for boarding and water entry
Wear sandals that slip on/off easily and consider reef shoes for rocky shore entries from the anchor.
Reef-safe sunscreen
Protects skin and nearby marine ecosystems during prolonged sun exposure on deck and in the water.
summer
Water shoes / reef shoes
Protects feet on rocky shorelines and when entering/exiting the water.
summer
Light windshell or fleece
Blocks cool sea breezes on the return trip or early-morning departures.
spring
Snorkel mask with anti-fog
Improves underwater visibility and comfort for longer snorkeling sessions.
summer