The Nestos Wreck is an artificial reef located off the coast of Greece. The structure rests on the seabed at depths ranging from 30 to 48 metres, requiring advanced certification and careful gas management. Visibility at the site typically ranges between 5 and 10 metres. Divers access the wreck via a shore entry, where parking is available. Due to the significant depth, divers must monitor their bottom time and buoyancy control closely. Hazards include the depth itself, the risk of nitrogen narcosis, and sea urchins present on the rocks during entry and exit. Divers should remain aware of unpredictable boat traffic in the area and use a surface marker buoy.

The Rio-Antirrio Bridge offers a technical dive beneath the massive pylons and substructure of this significant man-made landmark. Divers navigate depths ranging from 5 to 65 metres, requiring advanced certification and careful management of narcosis risks. The site is accessed by boat, though shore entry is possible with careful planning of exit points. Conditions in the strait are variable, with strong currents that can strengthen rapidly. Visibility fluctuates depending on local conditions. Given the significant depths and potential for decompression requirements, this site is suited for experienced technical divers who can plan conservative ascents and monitor tidal flows closely.

Panagopoula Achaia is a marine site featuring a combination of reef and cave topography. Suitable for beginners, the site offers both shore and boat entry options with mild currents. Depths range from 18 to 35 metres, with an average of 22 metres. Visibility varies significantly, ranging from 5 to 30 metres. Divers should be aware of sea urchins present on the reef and near entry points. Facilities at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, a dive shop, guided tours, and a cafe. Species recorded around this area include common octopus, wrasses, bream, and various nudibranchs.

Tsolis is a shore-entry dive site in Greece featuring a combination of reef and wall topography. The site is suitable for beginners, with depths ranging from 2 to 40 metres and an average depth of 15 metres. Divers can explore the shallower reef sections or descend deeper along the wall. Conditions include mild currents and visibility typically between 5 and 10 metres. The site is accessible year-round, and facilities such as parking and a cafe are available nearby. Night diving is also possible at this location. Divers should check locally before visiting to confirm current facility availability and conditions.

Gremos is a diverse marine site located 1000 metres offshore, offering a varied topography of reef, wall, canyon, and cave systems. The site is accessible only by boat and features depths ranging from 10 to 85 metres, allowing beginners to explore the shallower reef sections. Visibility typically spans 10 to 30 metres. Divers should be aware of moderate currents that can strengthen quickly and heavy boat traffic in the area. The habitat supports a variety of Mediterranean reef fish and invertebrates. Always use a surface marker buoy when surfacing and avoid contact with the sharp rock and coral structures found throughout the canyon and cave walls.

Diakopto is a shore-entry reef dive located on the Attica coast of Greece. The reef topography extends from shallow depths down to 40 metres, making it suitable for beginners who can remain in the shallower sections. Divers can expect visibility ranging from 10 to 30 metres, with the best conditions typically found on calm, sunny days. The site is accessible year-round with no significant currents to navigate. Water temperatures fluctuate between 15C and 28C throughout the year. As facilities are not confirmed on-site, divers should check locally for air fills and specific access details before planning a dive.