Kalogria Reef

★★★★★ (2,022)

Excellent dive site for beginners to experienced divers! Full with marine life like an aquarium. Great entrance from the shore, but you must swim 200 meters to reach the reef.

Typical Mediterranean flora and fauna found in Greece, with octopus, nudibranchs and several species of sea bream.

Dive Activity

Courses and Events

SCR Diving (HORIZON)

SCR Diving (HORIZON)

Discover the next level of diving with the Rebreather Mares Horizon, an advanced semi-closed rebreather designed for divers seeking longer, quieter, and more efficient dives. This May 2026, we are hosting a professional Mares Horizon Rebreather course for divers who want to expand their skills into the world of rebreather diving. The course combines classroom theory, hands-on workshops, and open-water training dives. You will learn the fundamentals of semi-closed rebreather operation, gas management, buoyancy control, emergency procedures, and proper system maintenance. What you will learn: • How the Mares Horizon Rebreather works • System setup and configuration • Rebreather dive planning • Oxygen and gas mixture management • Emergency and bailout procedures • Care and maintenance Who is this course for: • Certified Advanced Open Water divers or equivalent • Divers interested in technical and extended-range diving • Underwater photographers and explorers Upon successful completion, you will receive an official Mares Horizon Rebreather certification, allowing you to dive this system worldwide. Book your Mares Horizon Rebreather course in May and take your diving to the next level. Dates are from 20 of May to 24 of May

May 20, 2026 +3 More
$2,699.85
€2,300.00

Potential Wildlife Sightings

Wildlife Sightings are Based on User Generated Content

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 300

Alamy/Reinhard Dirscherl
Octopus

Octopus
148 Sightings
J
0
F
0
M
0
A
0
M
6
J
15
J
26
A
16
S
70
O
15
N
0
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 200

Alamy-WaterFrame
Moray Eel

Moray Eel
109 Sightings
J
0
F
0
M
0
A
2
M
8
J
0
J
19
A
0
S
78
O
0
N
2
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 250

Shutterstock-Henry_and_Laura_Whittaker
Grouper/Basslets

Grouper/Basslets
84 Sightings
J
0
F
0
M
0
A
1
M
0
J
0
J
11
A
0
S
63
O
8
N
1
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 40

iStock-Hoatzinexp
Jackfish

Jackfish
81 Sightings
J
0
F
0
M
0
A
0
M
5
J
0
J
17
A
0
S
55
O
0
N
4
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 250

iStock-Miguel-Angelo-Silva.
Scorpionfish

Scorpionfish
76 Sightings
J
0
F
0
M
0
A
0
M
7
J
0
J
0
A
10
S
59
O
0
N
0
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 120

AdobeStock-Composer.
Flounder

Flounder
27 Sightings
J
0
F
0
M
0
A
0
M
5
J
0
J
0
A
0
S
20
O
0
N
2
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 15

Shutterstock-Hans Gert Broeder
Garfish

Garfish
23 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
23
O
0
N
0
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 40

iStock-wrangel
Triggerfish

Triggerfish
13 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
13
O
0
N
0
D
0

Dive Centers Catering This Dive Site

OCEANIC Diving Center - NIKITI

OCEANIC Diving Center - NIKITI

Leoforos Sithonia 97 Str., 63088 Nikiti, Greece
OCEANIC Diving Center - NIKITI

OCEANIC Diving Center - NIKITI

Leoforos Sithonia 97 Str., 63088 Nikiti, Greece
AQUALAND

AQUALAND

SARTI SITHONIA, 63072 SARTI, Greece

Dive Sites Nearby

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Lemos <span class="text-color-primary text-sm"> (★4.8)</span>

Lemos (★4.8)

Experience level: All level. Maximum depth: 25m. Located on the southern tip of Sithonia, this cape has two beaches: one on the East and another on the West. Also known as Lemos Beach. We dive on the West side, one of the most fantastic spots for scuba diving. We start from a depth of 2m and end up at -22m
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Kartalia <span class="text-color-primary text-sm"> (★4.7)</span>

Kartalia (★4.7)

Just under 1 nautical mile from Toroni you will find Asprocavos. The unique rock morphology of the area makes it an ideal spot for divers of all levels. Kartalia consists of an impressive rocky reef that host a great variety of sea life, with 2 openings that we can navigate, one 7m long and the other 8m.
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Manitari <span class="text-color-primary text-sm"> (★4.9)</span>

Manitari (★4.9)

“Manitari“ is a reef shaped like a mushroom. It starts at a depth of 3 meters and goes down to 33 meters. Friendly environment with calm clean waters.
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Erica Gorgonians <span class="text-color-primary text-sm"> (★5.0)</span>

Erica Gorgonians (★5.0)

Diving level: Deep Diver This spectacular site begins at -27 meters and plunges to depths of up to -90 meters, fully draped in dense gorgonians that form a stunning natural tapestry along the reef.
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Kaminada <span class="text-color-primary text-sm"> (★4.8)</span>

Kaminada (★4.8)

The underwater cave of Kaminada (literally meaning chimney), is located 4 NM from Porto Koufo. The surrounding area can reach a depth of about 60 m.
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Erica cave <span class="text-color-primary text-sm"> (★4.9)</span>

Erica cave (★4.9)

Experience level: All levelMaximum depth: 40mIt is an open cavern with an entrance at 12 meters depth. It extends approximately 40 meters long and 10 meters wide.Outside the entrance of the cave, the maximum depth reaches 45 meters.The waters are crystal clear with a variety of underwater flora and fauna.
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Marathias Glossa <span class="text-color-primary text-sm"> (★5.0)</span>

Marathias Glossa (★5.0)

Diving level: All levels Maximum depth: 45m Just off the beach of Marathias lies Glossa, a unique underwater area named after its shape—an open corridor running parallel to the steep coastal cliffs.
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Marathias beach <span class="text-color-primary text-sm"> (★4.7)</span>

Marathias beach (★4.7)

Diving level: All levels Maximum depth: 15m A beach ideal for Try Scuba and Freediving, with rich marine life and a peaceful atmosphere. It is not a crowded destination, offering a more authentic and relaxed underwater exploration experience. The dive starts at -6 meters.
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Nemesis II <span class="text-color-primary text-sm"> (★5.0)</span>

Nemesis II (★5.0)

Diving level: All level Maximum depth: 50m This protected marine area features a narrow underwater canyon that divers pass through before reaching a rocky seascape teeming with marine life.
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Nemesis <span class="text-color-primary text-sm"> (★4.8)</span>

Nemesis (★4.8)

Diving level: All level! Maximum depth: 70 m/ 230 ft. This dive site extends from -7 meters down to -70 meters.Mild underwater currents usually prevail here, making the dive a bit more demanding but creating perfect conditions for spotting impressive fish species.
Aqualung
Pagona Cave <span class="text-color-primary text-sm"> (★4.9)</span>

Pagona Cave (★4.9)

The second dive in the area of Pagona. Pagona Cave is an open cavern with an entrance around 25 meters deep. On your way to the cavern you have to swim towards a steep wall. As you enter the cavern, pay close attention to the cracks and crevices as you will most likely find small fish and shrimps hiding.
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Pagona Deep Gorgonians <span class="text-color-primary text-sm"> (★5.0)</span>

Pagona Deep Gorgonians (★5.0)

Diving level: Deep diver A challenging dive site that starts at -24 meters and descends to an impressive -70 meters. The seabed is covered with spectacular gorgonians, from -24m, offering a unique and visually stunning experience for experienced divers.
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Pagona Cave <span class="text-color-primary text-sm"> (★4.9)</span>

Pagona Cave (★4.9)

Diving level: Advanced Maximum depth: 45m In a vertical underwater wall, reaching a depth of -45m, there is an entrance to a remarkable cave at about -24 m deep. All along the cave (about 25m long), we can spot many crustacean species and most commonly, shrimps.
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Tower <span class="text-color-primary text-sm"> (★4.8)</span>

Tower (★4.8)

Diving level: All levelsMaximum depth: 55 mThis unique dive site features two underwater towers. The first begins at -9 meters, while the larger southern tower drops to -50 meters.As you explore each structure in a zig-zag descent, you’ll be immersed in exceptionally dense and diverse marine life.
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Armatomenos <span class="text-color-primary text-sm"> (★5.0)</span>

Armatomenos (★5.0)

Diving level: Advanced diver Maximum depth: 90 m This is a challenging yet enchanting dive site. At around -30 meters, you’ll find vibrant yellow gorgonians fanning out in circular formations. As you descend deeper, striking red gorgonians begin to appear, adding even more color and vitality to the underwater la
Stefan G. (#181697)
porto valitsa <span class="text-color-primary text-sm"> (★4.7)</span>

porto valitsa (★4.7)

Diving level: All level Maximum depth: 50m This dive spot is located on the first peninsula of Halkidiki and is easily accessible by car.Approaching by boat, the dive starts at a depth of -7 to -8 meters, where you can choose to explore either left or right, swimming parallel to the underwater wall.
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Ampelos I <span class="text-color-primary text-sm"> (★5.0)</span>

Ampelos I (★5.0)

A beautiful, rocky area, offering a rare glimpse into an untouched underwater world. Here, marine life thrives, creating a vibrant, living ecosystem ideal for close observation.
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Antikoufo - Snorkeling <span class="text-color-primary text-sm"> (★0.0)</span>

Antikoufo - Snorkeling (★0.0)

A protected marine area where only snorkeling is allowed, offering a rare glimpse into an untouched underwater world. Here, marine life thrives, creating a vibrant, living ecosystem ideal for close observation.
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Peristeronisi <span class="text-color-primary text-sm"> (★0.0)</span>

Peristeronisi (★0.0)

A protected marine area, where only snorkeling is allowed.Peristeronisi is a charming rocky islet nestled in the crystal-clear waters of the Toroneos Gulf, just a short swim from the coast of Toroni. Snorkelers can explore its vibrant marine life from both the southeast and northwest sides.“
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Ampelos right <span class="text-color-primary text-sm"> (★5.0)</span>

Ampelos right (★5.0)

Experience level: All level Maximum depth: 30m This is a rocky area that thrives with wild sea life. There are a few monoliths that are protruding from the sea bottom in magnificent shapes.
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Asprokavos - Snorkeling <span class="text-color-primary text-sm"> (★0.0)</span>

Asprokavos - Snorkeling (★0.0)

A protected marine area where only snorkeling is allowed, offering a rare glimpse into an untouched underwater world. With no fishing activity permitted, marine life thrives — creating a vibrant, living ecosystem ideal for close observation.
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Karabogia <span class="text-color-primary text-sm"> (★5.0)</span>

Karabogia (★5.0)

Diving level: All level Maximum depth: 45m The dive begins at the anchor, resting at -7 meters. This rocky site, located about 70 meters offshore, offers a diverse underwater experience. On the outer side, the reef drops steeply to -45 meters,
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Faraggia - Canyons <span class="text-color-primary text-sm"> (★0.0)</span>

Faraggia - Canyons (★0.0)

Diving level: All level Maximum depth: 45m This dive site features three vibrant underwater canyons, each teeming with life and showcasing a dramatic, rugged seascape.
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Castle Toroni <span class="text-color-primary text-sm"> (★0.0)</span>

Castle Toroni (★0.0)

A protected marine area where only snorkeling is allowed, offering a rare glimpse into an untouched underwater world. With no fishing activity permitted, marine life thrives — creating a vibrant, living ecosystem ideal for close observation.
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Rock <span class="text-color-primary text-sm"> (★4.6)</span>

Rock (★4.6)

Diving level: All level At just -6 meters, a narrow underwater canyon welcomes divers at the start of the descent.As you exit the rocky passage, the seafloor slopes gradually down to -36 meters, revealing a landscape dotted with large solitary rocks and a thriving marine ecosystem.