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Inland Sea Dwejra Gozo Guide

Comprehensive guide · Updated July 2026

Quick Answer

The Inland Sea at Dwejra was formed by the collapse of a sea cave roof created by a geological fault in the limestone. The 60-metre-long tunnel connecting the lagoon to the Mediterranean is wide enough for diving in both directions and for fishing boats to pass through. Jacques Cousteau reportedly ranked the site among his top ten dives worldwide. The Chapel of St. Anne, built on the site of an older church, was constructed in 1963.

The Inland Sea at Dwejra in Gozo is not merely a lagoon; it is a geological masterpiece where the Mediterranean has sculpted a dramatic landscape over millennia. This remarkable body of water, connected to the open sea by a narrow natural archway, offers an experience that is both tranquil and thrilling. For visitors from the UK, it presents a compelling reason to explore Gozo, offering world-class diving, traditional boat trips, and a landscape that has captivated explorers like Jacques Cousteau. This guide provides everything you need to plan your visit, from understanding its unique geology to choosing between a swim in the calm lagoon or an adventure through the tunnel to the deep sea.

The Geology of the Inland Sea

The Inland Sea, or Il-Qawra as it is known in Maltese, is a testament to the powerful forces that have shaped Malta's islands. Its formation began with a geological fault in the limestone bedrock, which created a sea cave. Over time, the roof of this cave collapsed, leaving the lagoon we see today—a dramatic bowl of seawater separated from the Mediterranean by a natural arch. This process, which occurred millions of years ago, has created one of Malta's most spectacular natural landmarks. The lagoon itself is lined with a gently shelving stony beach, where traditional fishermen's huts stand as a reminder of the area's long-standing connection with the sea. The bottom consists mainly of pebbles and rocks and remains fairly shallow, making it accessible for a simple swim. The real drama lies beyond the archway, where the seabed drops dramatically to depths of 35-40 metres, revealing the true scale of this underwater wonder.

Diving the Inland Sea Tunnel

For divers, the Inland Sea offers an experience that few other locations in the Mediterranean can match. The 50-60 metre long tunnel connecting the lagoon to the open sea is the main attraction. It is approximately 10 metres wide and 10 metres deep, wide enough for comfortable passage in both directions. The tunnel itself is an experience, but the true reward emerges on the other side. Here, the seabed drops away in a series of steep shelves to depths of up to 35-40 metres. The water visibility is exceptional, often exceeding 30 metres, and the marine life is diverse, making every dive a discovery. Jacques Cousteau reportedly rated the Inland Sea among his top ten dive sites, a testament to its significance in the diving world. While Open Water divers can access the tunnel in calm conditions, it is highly recommended to be aware of currents and to use a dive guide, especially for first-time visitors, to ensure a safe and memorable experience.

Boat Trips and Luzzu Tours

You don't need to be a diver to experience the thrill of the Inland Sea. On calm days, traditional Maltese fishing boats called luzzijiet can navigate the 50-metre tunnel, offering visitors a unique perspective from the water. These boat tours are a popular attraction, taking passengers through the natural archway and along the dramatic coastline. From the boat, you can see Fungus Rock, a protected islet named after a rare plant once harvested by the Knights of St. John for its supposed medicinal properties. The tours also pass the site of the former Azure Window, the iconic limestone arch that collapsed in 2017, allowing visitors to witness the raw power of the sea that continues to shape this landscape. The gentle rocking of the luzzu and the sound of the water against the ancient stone create an unforgettable journey through one of Gozo's most dramatic settings.

The Wider Dwejra Landscape

The Inland Sea is the heart of the Dwejra area, but the surrounding landscape is equally compelling. Dwejra was once world-famous for the Azure Window, a giant limestone arch that collapsed into the sea during a storm in 2017. While the arch is gone, the area remains one of Gozo's most dramatic and visited natural attractions. Nearby, Fungus Rock stands as a stark, isolated islet, once so valuable to the Knights that it was guarded by a cannon. For divers, the Blue Hole is another exceptional site located in the same area. This natural rock formation is rated among the finest dive sites in the Mediterranean. Overlooking the entire Inland Sea stands the Chapel of St. Anne, a modern structure built in 1963 on the site of an older church, providing a peaceful vantage point from which to contemplate the scene.

Visitor Information and Facilities

Planning your visit to the Inland Sea is straightforward, with several facilities available to make your trip comfortable. The site features a café where you can grab a drink or a snack, and there is dedicated parking for visitors. Public toilets are available, and a public payphone is located on-site for any emergencies. For specific inquiries, you can contact the San Lawrenz Local Council at +356 21563556 or +356 21563656. When planning your trip to Gozo, you'll need to consider how to get there. Most visitors fly into Malta International Airport and then take a ferry from Ċirkewwa to Mgarr in Gozo. For those looking to stay in the area, there are various hotels in Gozo ranging from traditional farmhouses to modern resorts, offering a comfortable base from which to explore this and other things to do in Malta.

A Perfect Day Itinerary for UK Visitors

To make the most of your visit to the Inland Sea, consider this sample itinerary. Start your day with an early morning dive or snorkel in the calm waters of the lagoon itself. The morning light is beautiful, and the water is often at its clearest. After your swim, head to the nearby café for a traditional Maltese pastizzi and a coffee. Around mid-morning, take a traditional luzzu boat trip through the tunnel. This will give you a comprehensive view of the coastline, including Fungus Rock and the site of the former Azure Window. Spend the afternoon exploring the Gozo countryside, perhaps visiting the Citadella in Victoria for panoramic views. For dinner, choose one of the many excellent restaurants in Malta specialising in fresh Gozitan seafood. This itinerary allows you to experience the Inland Sea from multiple perspectives, from the underwater world to the coastal views, making for a truly memorable day.

Beyond the Inland Sea: Exploring Gozo

While the Inland Sea is a must-see, Gozo offers a wealth of other attractions that make it a worthwhile destination in its own right. The island is often described as a more rural and relaxed version of Malta, with rolling hills, charming villages, and a slower pace of life. The Citadella in Victoria, the island's capital, is a fortified city that offers stunning views and a glimpse into Gozo's history. For beach lovers, the island has several beautiful sandy coves, which you can discover by exploring our guide to the best beaches in Malta. If you're interested in history, the Ġgantija Temples, older than the pyramids of Egypt, are a UNESCO World Heritage site. After a day of exploring, you can relax at a seaside restaurant, enjoying the fresh produce and seafood that Gozo is famous for. For UK visitors looking for a complete Malta holiday, combining a few days in Gozo with time on the main island provides a perfect balance of natural beauty, history, and culture.

Frequently Asked Questions

Is the Inland Sea safe for swimming?
The lagoon itself is generally considered safe for swimming. It has a gently shelving stony beach and the water is fairly shallow, making it accessible for most people. However, the sea beyond the tunnel can have strong currents and is not suitable for casual swimming. Always assess conditions before entering the water and be aware of any local warnings.
What is the best time of year to visit the Inland Sea?
The best time to visit is during the late spring and early autumn months, from April to June and September to October. During these periods, the weather is warm and sunny, the sea is generally calm, and the tourist crowds are smaller than in the peak summer months of July and August.
Can I get to the Inland Sea using public transport from Mgarr Harbour?
Yes, you can reach Dwejra from Mgarr Harbour using public transport. The bus service from Mgarr to San Lawrenz, the village closest to Dwejra, is the most practical option. The journey takes approximately 15-20 minutes. It's advisable to check the current bus schedules, as services can be less frequent in the off-season.
What should I wear when visiting the Inland Sea?
For swimming in the lagoon, standard swimwear is sufficient. The seabed is stony, so water shoes can be more comfortable than bare feet. For the boat trips, you may want to bring a light jacket, as it can be cooler and windier out on the water. Sun protection, including a hat and sunscreen, is essential due to the exposed nature of the site.
How long does a boat tour of the Inland Sea typically last?
A typical boat tour of the Inland Sea and the surrounding Dwejra coastline usually lasts between 30 and 45 minutes. The tour will take you through the tunnel, past Fungus Rock, and along the cliffs to the site of the former Azure Window, providing a comprehensive overview of the area's key landmarks.
Are there any entry fees for the Inland Sea?
There is no entry fee to access the Inland Sea lagoon itself or the surrounding Dwejra area. You only pay for specific activities, such as boat tours or guided dives. The facilities, including parking and toilets, are free to use, though you may want to support the local café for refreshments.
Can I see the Azure Window from the Inland Sea?
You cannot see the Azure Window itself, as it collapsed in 2017. However, boat tours that depart from the Inland Sea will take you to the site where the arch once stood. From the water, you can see the dramatic coastal formation that remains and understand the scale of the natural forces that destroyed the landmark.
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Key Facts

  • The Inland Sea was formed by a collapsed sea cave created by a geological fault in the limestone.
  • The tunnel connecting the lagoon to the sea is approximately 50-60 metres long, 10 metres wide, and 10 metres deep.
  • Jacques Cousteau reportedly rated the Inland Sea among his top ten dive sites in the world.
  • Traditional Maltese fishing boats called luzzijiet can pass through the tunnel on calm days to offer tours.
  • The Azure Window, a famous landmark in the area, collapsed into the sea during a storm in 2017.
  • Facilities at Dwejra include a café, parking, public toilets, and a payphone.

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