Escape Heraklion for a private full-day sail to Dia Island — swim in crystalline bays, snorkel around submerged Minoan ruins, and walk quiet rocky coves while enjoying a gourmet meal aboard.
Escape Heraklion for a private full-day sail to Dia Island — swim in crystalline bays, snorkel around submerged Minoan ruins, and walk quiet rocky coves while enjoying a gourmet meal aboard.
A salt wind pulls at the sails as the city recedes and the Aegean opens into a blue so clear it seems to dare you to dive. On a private luxury yacht out of Heraklion, Dia appears as a low, rocky silhouette dotted with scrub and ancient stones — an island that feels both remote and immediate.
Verified experiences and guided adventures in the surrounding area.
Operated by Avanti Sailing · Heraklion, Crete
A salt wind pulls at the sails as the city recedes and the Aegean opens into a blue so clear it seems to dare you to dive. On a private luxury yacht out of Heraklion, Dia appears as a low, rocky silhouette dotted with scrub and ancient stones — an island that feels both remote and immediate.
Dia’s quiet coves and submerged ruins speak to Crete’s long human story. Archaeological finds and Jacques-Yves Cousteau’s underwater surveys suggest Dia once hosted an important Minoan harbor that later sank, its story buried beneath waves and pumice from the Bronze Age Santorini eruption. Geologically the island is limestone and schist, cut by small bays — Agios Georgios, Kapari, Panagia and Agrielia — where boats tie and swimmers jump into emerald water. Culturally, this stretch of sea has been a working seascape for millennia; today local captains steer with the same respect for currents and wind their grandparents had.
Practical side: expect a full-day outing of about six hours with swim stops, snorkeling gear and a provided lunch and drinks. The boat will anchor in snug bays for shore walks on uneven, rocky ground; wear reef-appropriate shoes. Bring reef-safe sunscreen, a light wind shell and a hat — afternoons can be sharp with reflected sun. If you plan to explore the archaeological spots, keep to paths and avoid disturbing walls or loose stones. Onboard, staff handle lines and safety; on land, the island’s silence rewards slow steps and observant eyes.
This trip is ideal for swimmers, snorkelers and anyone who wants a private day at sea with short hikes and rich coastal history.
easy.
6 hours.
Suitable for people of most fitness levels; involves short swims and walking on uneven rocky ground for up to 20–40 minutes.
The private cruise is approximately six hours, typically a morning departure from Heraklion with several swim stops and time ashore on Dia.
Yes — snorkeling equipment is included, though some guests prefer to bring their own masks for fit and comfort.
Yes — the trip is suitable for non-swimmers; flotation aids are available and staff assist with boarding from the boat.
Lunch, snacks, bottled water and some alcoholic beverages are provided as part of the full-day cruise package.
Dia held a Minoan harbor settlement; underwater surveys in the 1970s revealed submerged structures suggesting it was a major port before being partly lost to seismic events around 1450 BCE.
Visitors are asked to use reef-safe products and avoid trampling coastal vegetation; boats typically anchor in designated spots to limit damage to seafloor habitats.
Avanti Sailing operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




A salt wind pulls at the sails as the city recedes and the Aegean opens into a blue so clear it seems to dare you to dive. On a private luxury yacht out of Heraklion, Dia appears as a low, rocky silhouette dotted with scrub and ancient stones — an island that feels both remote and immediate.
A salt wind pulls at the sails as the city recedes and the Aegean opens into a blue so clear it seems to dare you to dive. On a private luxury yacht out of Heraklion, Dia appears as a low, rocky silhouette dotted with scrub and ancient stones — an island that feels both remote and immediate.
Dia’s quiet coves and submerged ruins speak to Crete’s long human story. Archaeological finds and Jacques-Yves Cousteau’s underwater surveys suggest Dia once hosted an important Minoan harbor that later sank, its story buried beneath waves and pumice from the Bronze Age Santorini eruption. Geologically the island is limestone and schist, cut by small bays — Agios Georgios, Kapari, Panagia and Agrielia — where boats tie and swimmers jump into emerald water. Culturally, this stretch of sea has been a working seascape for millennia; today local captains steer with the same respect for currents and wind their grandparents had.
Practical side: expect a full-day outing of about six hours with swim stops, snorkeling gear and a provided lunch and drinks. The boat will anchor in snug bays for shore walks on uneven, rocky ground; wear reef-appropriate shoes. Bring reef-safe sunscreen, a light wind shell and a hat — afternoons can be sharp with reflected sun. If you plan to explore the archaeological spots, keep to paths and avoid disturbing walls or loose stones. Onboard, staff handle lines and safety; on land, the island’s silence rewards slow steps and observant eyes.
This trip is ideal for swimmers, snorkelers and anyone who wants a private day at sea with short hikes and rich coastal history.