The first thing you hear underwater is your own breath. It is a loud, rhythmic sound that fills your awareness as you descend through the thermocline. The temperature drops suddenly, and the water shifts from pale green to deep blue. At twenty meters, the wall of rock beside you disappears into darkness below, and a school of barracuda passes overhead, their silver bodies catching what little light remains. Europe diving spans wrecks, reefs, and caves that rival any tropical destination.

Best Wreck Dives in Europe

Europe has some of the best preserved and most accessible wrecks in the world. The Zenobia, a Swedish ferry that sank off the coast of Cyprus in 1980, is consistently ranked among the top ten wreck dives globally. The ship sits on its side at a depth of forty two meters, and the cargo of articulated trucks is still visible in the hold. The visibility is excellent, and the wreck is home to huge groupers, barracuda, and moray eels. In the Mediterranean, the SS Thistlegorm in the Red Sea gets more attention, but the wrecks of the Greek island of Kalymnos offer a more accessible alternative. The Peristera, a classical Greek shipwreck from the fifth century BC, lies at a depth of only twenty two meters off the coast of Alonissos. The cargo of thousands of amphorae is still visible, scattered across the seabed where it has rested for over two thousand years. In the Baltic, the wreck of the Vasa Museum in Stockholm is too fragile to dive, but the many wrecks of the Baltic Sea are exceptionally well preserved because the cold, brackish water prevents the wood eating organisms that destroy wrecks in warmer seas.

Reef and Wall Diving

The Mediterranean may not have coral reefs like the tropics, but it has rich limestone reefs that support a different kind of ecosystem. The Medes Islands off the coast of Catalonia in Spain are the best reef diving in the Mediterranean. The protected marine reserve has banned fishing for over thirty years, and the result is an extraordinary density of marine life. Groupers the size of small children patrol the reef, and schools of barracuda numbering in the hundreds circle above the divers. The island of Elba in Italy offers excellent reef diving along its granite coastline. The water is clear, and the rocky reefs are covered in gorgonian sea fans, red coral, and anemones. In the Atlantic, the island of Madeira offers dramatic wall diving. The drop offs at Garajau start at fifteen meters and descend into the abyss. The walls are covered in black coral and sea fans, and pelagic fish including manta rays and devil fish are common sights.

Cave and Cavern Diving

Europe has some of the most spectacular cave diving in the world. The Blue Hole on the island of Gozo in Malta is a collapsed sea cave that forms a circular opening in the limestone platform. You descend into the hole, pass through an underwater arch at a depth of fifteen meters, and emerge on the outer wall of the reef. The light effects inside the cavern are extraordinary, with sunlight filtering through the opening and creating a blue glow that gives the site its name. In Spain, the cave systems of Mallorca offer freshwater cave diving in places like Cova del Pirata, where stalactites and stalagmites create otherworldly formations. The island of Sardinia in Italy has the Grotta del Nereo, one of the largest underwater cave systems in Europe, with tunnels that extend for over four kilometers.

Diving Conditions and Certification

Diving in Europe is generally more demanding than diving in tropical destinations. Water temperatures range from twelve degrees Celsius in the Atlantic to twenty six degrees Celsius in the Mediterranean in summer. A drysuit or a thick wetsuit is necessary for all but the warmest months. Visibility is variable but generally good, ranging from fifteen to thirty meters in most Mediterranean sites. Many of the best European dive sites are at depths beyond the recreational limit of forty meters, so advanced certification and experience with deep diving are recommended. Nitrox is widely available and significantly extends your bottom time. The best diving season runs from May through October, with September being the optimal month because the water has warmed through the summer and the visibility is at its peak.

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