Advanced PADI diver exploring Sithonia Greece

Best Scuba Dive Sites in Halkidiki

Explore the mythical underwater world of Sithonia. From shallow historical ruins to breathtaking deep walls.

7 Iconic Dive Sites
Depths from 2m to 50m
All Levels Welcome
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Our Favourite Dive Sites Around Sithonia

As a PADI 5-Star Resort based at Metamorfosi Beach in Sithonia, we have privileged access to some of the most spectacular dive sites in Northern Greece. From shallow reefs perfect for your first ocean dive, to dramatic 50-meter walls for experienced technical divers — here is our curated list of the best dive sites in Halkidiki.

Kalogria Reef

One of Northern Greece's most celebrated shore dives, located off a stunning Blue Flag beach. The dive starts in shallow, crystal-clear water (4m) and descends down to 28m, with sandy slopes leading deeper for tech divers. Expect to encounter octopuses, groupers, amberjacks, and vibrant sea anemones. Perfect for both Discover Scuba courses and technical training.

Depth: 2-28m
Vis: 15-25m+
Level: All levels

Bahia Beach

Situated near the beautiful Vourvourou area, this deep underwater reef is renowned for its thrilling double-wall topography dropping from 6 meters to a max 43m. It's a fantastic spot for marine biology enthusiasts, offering frequent sightings of lobsters, moray eels, and massive amberjacks navigating the steep underwater cliffs.

Depth: 2-43m
Vis: 15-25m+
Level: All levels & tec

Porto Elea (Zografou) Reef

Entering from a picturesque jetty, this site offers a diverse underwater playground. It combines shallow, sunlit canyons with an impressive wall that drops from 18m down to 31m. The marine life is dense, and on rare, lucky occasions, divers have even been joined by wild dolphins here.

Depth: 2-31m
Vis: 12-20m+
Level: All levels & tec

Poseidon's Arch & Ruins

This versatile location near Ammouliani offers two distinct experiences. The deeper route features colorful vertical walls and a stunning underwater archway that divers can swim through. The shallow route (4-8m) is a historical treasure hunt, where you can glide over scattered stones believed to be the remnants of an ancient coastal settlement.

Depth: 4-31m
Vis: 11-15m
Level: All levels

Loutra Thermal Springs ('The Bubblemaker')

A truly unique dive site located just beneath the Agia Paraskevi Spa hill on the Kassandra peninsula. Thanks to an underwater thermal source, divers experience natural geysers erupting from the seafloor. Thousands of tiny gas bubbles constantly rise through the sand, while mineral deposits create a surreal, white landscape that makes you feel like you are diving in a glass of champagne.

Depth: 2-30m
Vis: 12-20m
Level: All levels

Kelyfos Island (Turtle Island)

Our premium boat diving destination. This uninhabited island between Sithonia and Kassandra is a pristine marine sanctuary. Shallow sections (2-15m) are bursting with colorful sponges, octopuses, and seahorses, while a breathtaking vertical wall plunges down to 90m+ for advanced and tech divers. The cobalt blue waters here offer some of the best visibility in Greece.

Depth: 2-90m+
Vis: 15-30m+
Level: All levels & tec

Porto Valitsa Deep Wall

A spectacular wall dive that caters to both recreational and technical divers. The dramatic drop-off descends from 2m all the way down to 50m along a sandy slope. The site is famous for its outstanding visibility, intricate soft corals, and abundant macro life.

Depth: 2-50m
Vis: 12-22m+
Level: All levels & tec

Frequently Asked Questions About Diving in Halkidiki

What are the best dive sites in Halkidiki for beginners?

The best dive sites for absolute beginners and first-time divers in Halkidiki are Kalogria Reef (4–12m shallow section), Poseidon's Arch (4–15m), and the Loutra Thermal Springs (2–12m). These sites offer calm conditions, high visibility, and incredibly rich marine life — perfect for a first underwater experience.

What is the visibility like at dive sites in Sithonia?

Halkidiki is famous for exceptional underwater visibility. At our top sites you can regularly expect 15 to 30+ meters of visibility, particularly at Kelyfos Island (15–30m+) and Kalogria Reef (15–25m+). This is significantly better than most Mediterranean dive destinations.

How deep are the dive sites in Halkidiki?

Our dive sites range from very shallow (2–4 meters, ideal for beginners and the Discover Scuba Diving program) to extreme technical depths. Porto Valitsa Deep Wall descends to over 50m and is a favourite among PADI TecRec divers. Most recreational dives take place between 6 and 30 meters.

Can I see sea turtles and marine life in Halkidiki?

Yes! Halkidiki has a rich and diverse marine ecosystem. At Porto Elea you may encounter Caretta caretta sea turtles on lucky occasions. Kelyfos Island (Turtle Island) is famous for octopus, seahorses, and colourful sponges. At Kalogria Reef you will regularly see moray eels, groupers, and nudibranchs.

Do you offer boat diving to Kelyfos Island?

Yes. Kelyfos Island (also known as Turtle Island) is our premium boat diving destination. It is an uninhabited island between Sithonia and Kassandra, accessible only by boat, and is one of the most pristine marine sanctuaries in Northern Greece.

What is the best time of year to dive in Halkidiki?

The best diving season in Halkidiki runs from May through October. Water temperatures range from 18°C in early spring to 27°C at the peak of summer. July and August offer the warmest water and longest days, while May, June, and September typically offer the best visibility with fewer crowds.
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