Inland Sea Gozo – A Spectacular Tunnel Dive in Dwejra

Explore The Inland Sea Gozo, One of Gozo’s Most Unique Dive Sites

The Inland Sea Gozo is a breathtaking dive site featuring a natural seawater lagoon connected to the open sea by a stunning underwater tunnel. Located just behind the Chapel of St. Anne in Dwejra, this dive offers dramatic underwater scenery, crystal-clear waters, and exciting depth opportunities.

This dive is perfect for Advanced Divers and Technical Divers looking to explore vertical walls, hidden caverns, and diverse marine life. Whether you prefer shallow reef exploration or deep technical diving, the Inland Sea Gozo is a must-visit location.

Why Dive at the Inland Sea Gozo?

Unique Tunnel Experience – Swim through a stunning 80m-long tunnel, illuminated by natural light.
Dramatic Rock Formations – Explore vertical reef walls, caverns, and deep ledges.
Diverse Marine Life – Encounter lobsters, groupers, barracuda, and amberjacks.
Easy Entry & Exit – No long surface swims or rough shore entries, making it ideal for technical diving.
Depth Variety – Recreational divers can stay within 25m, while technical divers can descend beyond 55m.

With excellent visibility and breathtaking light effects, the Inland Sea Gozo is an unforgettable dive.

The Dive Route & Depth Options

Entering the Tunnel

Begin in the shallow waters of the lagoon, where the seabed slopes gently towards the tunnel entrance.
As you move through the tunnel, light streams in from the surface, creating spectacular contrasts and silhouettes.
The tunnel reaches a maximum depth of 25m, but divers can choose their depth based on certification level.

Exploring the Open Sea

Once outside the tunnel, you’ll encounter steep rock walls, perfect for multi-level diving.
Advanced divers can explore the outer reef and search for hidden marine life.
Technical divers can descend further to 55m, discovering deeper ledges where large groupers and lobsters hide.

Marine Life Highlights

Schools of barracuda and amberjacks often patrol the tunnel entrance.
Lobsters, scorpionfish, and moray eels can be found in cracks along the walls.
Giant groupers rest at deeper depths, offering incredible photography opportunities.

Technical Diving & DPV Exploration

The Inland Sea Gozo is an ideal site for technical diving due to its gradual depth progression, easy access, and stunning underwater scenery.

DPV (Diver Propulsion Vehicle) Option – Use a DPV to explore deeper sections faster, including the area where the Azure Window collapsed.
Decompression Stops – Natural swim-throughs offer perfect spots to clean deco on the return to the tunnel.

For technical divers, this dive site provides an exciting blend of depth, exploration, and breathtaking underwater landscapes.

Who Can Dive at the Inland Sea Gozo?

Advanced Divers – Must have good buoyancy control due to the tunnel’s overhead environment.
Technical Divers – Any level of technical diver can explore deep walls, caverns, and the collapsed Azure Window site.

📍 Looking for more top Gozo dive sites? Check out:

Blue Hole Gozo – A famous natural rock chimney and underwater arch.
Cathedral Cave – A spectacular light-filled cavern perfect for deep diving.

Safety Considerations & Exit Strategy

Heavy Boat Traffic in Summer – We surface just outside the tunnel, then swim the last section at the surface.
Carry a DSMB (Delayed Surface Marker Buoy) – Essential for boat diving safety.
Plan Your Gas Consumption – Ensure enough air for the return through the tunnel.