Grand Homes GozoGrand Homes · Gozo
Diver descending into the deep blue of Gozo's Dwejra coast
The Gozo Journal
April 2026 · Beneath the Blue

The ultimate diving guide to Gozo's Blue Hole & Inland Sea.

Two of the Mediterranean's most legendary dive sites sit side-by-side on Gozo's western coast. Here is exactly what to expect beneath the turquoise surface — and how to dive them safely.

Gozo, Malta's sister island, is widely regarded as one of the top scuba diving destinations in the Mediterranean. At the heart of its reputation lies the dramatic coast of Dwejra Point — home to two world-class dive sites just a short walk apart.

Whether you are plunging beneath the famously clear turquoise surface for the first time or navigating overhead limestone architecture as an advanced diver, this guide covers everything worth knowing about the Blue Hole and the Inland Sea — profiles, safety, and how to plan your underwater adventure from Grand Blue Vista.

01 · Dwejra Point · Western Gozo

The Blue Hole: A Mediterranean Masterpiece

The Blue Hole: A Mediterranean Masterpiece

Consistently ranked among the top ten dive sites in Europe, the Blue Hole is a natural limestone tube carved over thousands of years by relentless wind and wave action — a cathedral of light and stone hidden along the wild Dwejra coast.

The entry

Reaching the pool requires a physically demanding walk over sharp, uneven coralline limestone. Carved rock steps lead down to a sheltered natural rock pool where you gear up and submerge into water between 1 and 15 metres deep.

The arch

At six to fifteen metres, a massive underwater archway serves as your gateway to the open sea. Swimming through this window into the deep blue is one of the most photographed moments in Mediterranean diving.

The Chimney & Coral Garden

Heading left after the arch leads to a vertical fissure known as 'The Chimney'. Divers enter at 25 metres and ascend through the crack, emerging onto a shallow, vibrant coral garden at just 5 to 6 metres.

The Azure Window ruins

Heading right brings you to the remains of the world-famous Azure Window, which collapsed during a massive storm in 2017. The site is now an incredible underwater playground of monolithic boulders and deep canyons.

Marine life to watch for

Watch for octopuses, moray eels, parrotfish, nudibranchs, and schools of amberjack or barracuda patrolling the deep vertical walls.

02 · Dwejra · a few hundred metres from the Blue Hole

The Inland Sea & Tunnel: Into the Deep Indigo

Just a few hundred metres away sits the Inland Sea — a peaceful, semi-circular shallow lagoon completely landlocked by towering cliffs. Its magic lies in a natural tunnel bored straight through the rock.

The transit

An 80-to-90-metre tunnel drilled by the sea connects the quiet lagoon to the open Mediterranean. You enter in water only 2 to 3 metres deep inside the lagoon and follow the seabed down as the walls close in around you.

The drop-off

By the time you reach the open-sea exit, you are gazing into a magnificent deep indigo abyss where the outer wall plummets past 50 metres — an unforgettable Mediterranean drop-off.

The light effects

Time this dive for midday. When the sun is directly overhead, dramatic shafts of light pierce the roof fissures, illuminating the tunnel in an ethereal blue-green glow.

Plan your dive

Required certification.

Blue Hole

Open Water (OWD)

Accessible to Open Water Divers in calm conditions to a maximum depth of 18 m. Advanced and technical divers can explore the outer wall well beyond 40 m.

Inland Sea

Advanced Open Water (AOW)

Ideally suited to Advanced divers. Open Water divers can experience parts of the tunnel, but emerging into the 26 m open-sea exit and managing buoyancy against the wall demands confidence.

Underwater

Critical safety tips.

Beware of boat traffic

The Inland Sea tunnel is used by traditional Maltese luzzu boats. Remain submerged while transiting and never surface inside the tunnel.

Bring a torch

A dive light is mandatory for the Inland Sea — essential to inspect hidden cup corals and nudibranchs and to serve as a signalling device in low light.

Check the weather

Both sites are vulnerable to north-westerly (Majjistral) winds. Strong swells create dangerous undertows inside the Blue Hole pool. Always check with a local dive centre first.

Best season

Prime diving runs May to October with warm water (20–28 °C) and reliably calm seas. Dive early to beat the afternoon winds and summer crowds.

Getting there

Who to hire & how to arrive.

Because of the challenging entry terrain and overhead environments, hiring a certified local dive centre is highly recommended for guiding or equipment rental. Reputable centres across Gozo offer daily excursions to Dwejra, including safety briefings, transport, and expert navigation.

If you are travelling independently, Dwejra Point is roughly a 10 km drive from Gozo's capital, Victoria. There is a large public parking area right near the headland along with basic amenities and public restrooms. Be sure to pack solid water shoes or sturdy boots for the rocky walk to the shore.

10 km from VictoriaBest dived May – October
Base camp for divers

Surface to your private sanctuary.

After a day at Dwejra, return to Grand Blue Vista in Marsalforn. Rinse the salt, pour a glass of local wine, and watch the sun sink below the cliffs from your private terrace — the perfect end to every dive day.

Check availability & book→View Grand Blue Vista
Share this story · grandhomesgozo.com
Back to the Gozo Journal
Book Now→