Torn between the coral reefs of the Red Sea and the sunken history of Alexandria? Compare marine life, history, and conditions to decide where to dive in Egypt.
Egypt is undoubtedly one of the scuba diving capitals of the world. But when divers book flights to Cairo, they face a stark geographic choice regarding where to strap on a tank.
To the east lies the legendary Red Sea, home to vibrant coral reefs and resort towns like Hurghada and Sharm El-Sheikh. To the north lies the Mediterranean Sea, dominated by the ancient port city of Alexandria, where history lies submerged beneath the waves.
If you are struggling to decide between the two coasts, or are wondering if you have time for both, this complete comparison breaks down the fundamental differences between diving the Red Sea and diving the Egyptian Mediterranean.
The most significant difference between the two destinations is the environment itself. They offer completely diametric experiences.
The Red Sea is characterized by some of the most spectacular, healthy, and colorful coral reef ecosystems on the planet. The topography features massive vertical walls dropping into the abyss, shallow coral gardens, and dramatic underwater pinnacles. The focus here is entirely on the awe-inspiring beauty of the natural world.
The Mediterranean coast of Egypt lacks massive coral reef formations. Instead, the focus of diving in Alexandria is human history. Due to coastal subsidence and earthquakes, the ancient Royal Quarters of the Ptolemaic Kingdom sank off the coast of Alexandria. When you dive here, you are swimming over the ruins of Cleopatra's Palace, passing by 2,000-year-old sphinxes, hieroglyphic steles, and the scattered ruins of the Pharos Lighthouse.
The Verdict: Do you prefer exploring vibrant, living coral structures, or are you an underwater history buff looking to touch ancient ruins?
Water temperature and salinity govern what lives in these two seas.
This is tropical diving at its finest. The Red Sea is famous for massive schools of colorful anthias, butterflyfish, and parrotfish. You have exceptional opportunities to dive with sea turtles, dolphins, dugongs, and large pelagic species like hammerhead sharks, oceanic whitetips, and manta rays.
The Mediterranean is cooler and less saline. Marine life here is much less colorful and significantly sparser. You will encounter typical Mediterranean species: groupers, octopus, sea bream, and moray eels. In Alexandria, the fish are merely the backdrop—the ruins and shipwrecks are the main attraction.
The Verdict: If seeing massive schools of fish or large pelagic animals is your priority, you must choose the Red Sea.
When can you dive these locations?
The Red Sea offers world-class diving 365 days a year. Even in the dead of winter (January/February), water temperatures rarely drop below 22°C (71°F), making it highly diveable with a 5mm or 7mm wetsuit. By August, the water feels like a warm bath at 29°C (84°F).
Diving in Alexandria is highly seasonal. The Mediterranean gets quite cold. In winter, strong storms churn the sea, destroying visibility and making boat launches dangerous. The only truly comfortable time to dive Alexandria is during the hot summer months (June to October), when water temperatures peak around 26°C to 28°C (79°F to 82°F).
The Verdict: If you are traveling between November and May, the Red Sea is your only viable option.
The Red Sea is famous for exceptional water clarity. Because there are no major rivers flowing into it and rainfall is negligible, visibility often exceeds 30 to 40 meters (100 to 130 feet). The currents can be strong, allowing for thrilling drift dives over deep walls.
The ancient ruins of Alexandria are located inside or just outside a bustling, working harbor in a massive metropolis. The water is rarely clear. On a good summer day, visibility might be 8 to 15 meters. Inside the harbor near Cleopatra's Palace, it is often much lower due to silt.
However, this lower visibility adds an eerie, atmospheric feel as you explore the ancient statues looming out of the green water.
The Verdict: For pristine underwater photography environments, the Red Sea wins easily.
Hurghada and Sharm El-Sheikh are built entirely around the dive industry. There are hundreds of 5-star dive centers, massive liveaboard yachts, and a culture of spending entire days on large, comfortable dive boats eating buffet lunches on the sundeck.
The diving infrastructure in Alexandria is minimal. You must book through a specialized Alexandria dive club that will handle strict Antiquities permits on your behalf. There is no "all-day boat life" here; you take a 10-minute Zodiac ride to the ruins, dive, and return immediately to the dock.
The Verdict: The Red Sea offers luxury and convenience; Alexandria offers an exclusive, rugged expedition feel.
Both locations offer world-class wreck diving, but of vastly different historical periods.
If you are taking your PADI Open Water Diver course, want to relax on a sun-drenched boat, or dream of swimming with dolphins over pristine coral reefs, the Red Sea is one of the best destinations on earth.
If you are an experienced traveler looking for a profound, unique, and highly specific encounter with ancient history—if you want to swim down the submerged streets of the Ptolemaic kings—then Alexandria offers an extraordinary adventure you simply cannot replicate anywhere else in the world.