Akrotiri Reef is a combined wall and reef structure located off the coast of Santorini, Greece. The site ranges from 8 metres to 25 metres in depth, with an average depth of 20 metres. Divers can expect visibility of 30 metres. Access is strictly by boat, and the site is suitable for beginners, though moderate currents require careful attention. Divers should remain close to their guide and maintain distance from the wall to avoid contact with sharp rocks and coral. Entanglement hazards exist near the reef structure, so divers should remain vigilant. Typical dives last 45 minutes, with early morning often providing the calmest conditions.

Mansel Reef in Santorini, Greece, is a boat-accessible dive site featuring a reef environment. Divers can expect depths ranging from 9 to 30 metres, with an average depth of 20 metres. The site is suitable for intermediate divers, offering visibility between 15 and 30 metres and mild currents. Divers should be aware of potential surge conditions. Typical dives at this location last approximately 45 minutes. On-site facilities include changing rooms, showers, a rinse station, and gear storage to support diving activities.

Korfos is a reef and cave system located in Santorini, Greece, offering intermediate divers a varied underwater environment. The site spans depths from 5 to 30 metres, with an average depth of 20 metres. Visibility is generally good, ranging between 20 and 30 metres. Access is by boat only, and divers should maintain controlled buoyancy to avoid contact with sharp rocks and coral present throughout the cave sections. A torch is recommended to explore the cave features effectively. Species recorded around this area include Mediterranean moray, Turkish wrasse, white seabream, and various species of nudibranchs such as the Mediterranean violet aeolid.

Thirasia 2 is a reef and wall dive located off the island of Thirasia within the Santorini caldera. The site features depths ranging from 10 to 15 metres, with an average depth of 12 metres. Visibility varies between 10 and 30 metres, and the site is suitable for beginners. Access is by boat only, and divers should remain close to their guide due to boat traffic. Divers must maintain good buoyancy to avoid contact with the sharp reef and wall structures. Typical dives last approximately 45 minutes, with conditions varying depending on the time of day.

Thirasia 1 is a wall and reef site located off Santorini, Greece, accessible only by boat. The topography features a reef that transitions into a wall, dropping from 18 metres to depths of 50 metres. With visibility consistently around 30 metres and mild currents, the site is manageable for divers. Due to the significant depth of the wall, divers must monitor their gauges closely and agree on a turnaround depth before entering the water. The site is suitable for beginners who remain on the shallower sections of the reef to extend their bottom time. Typical dives last 45 minutes, with guided tours and boat charters available for access.

Aspronisi 1 is a boat-access dive site near Santorini featuring a combination of reef, wall, and artificial reef structures. The topography is varied, with a wall that drops to a maximum depth of 45 metres, requiring careful monitoring of depth gauges. Conditions are generally manageable with mild currents and visibility ranging from 15 to 30 metres. Divers should be aware that surge can develop with little warning, making it advisable to remain close to the reef and wall structures. Due to the depth profile, this site is suited for intermediate divers with appropriate certification. Water temperatures at the site fluctuate between 17C and 21C throughout the year.

Riva Santo in Santorini, Greece, offers a combination of reef and wall topography suitable for various skill levels. The site features a depth range of 5 to 45 metres, with an average depth of 15 metres, allowing beginners to explore the shallower reef sections. Divers can access the site via both shore and boat entries. Visibility typically ranges between 10 and 30 metres. A moderate current is common, so divers should monitor conditions and consider timing dives around slack water. Facilities at the shore entry point are limited, and it is recommended to consult local dive operators regarding daily current patterns and site access.

Palia Kameni Wreck is an artificial reef located in the waters of Santorini, Greece. The site is strictly for advanced divers, with the wreck structure lying at depths between 22 and 33 metres. Access is by boat only. Divers encounter mild currents and visibility ranging from 10 to 30 metres. Species recorded around this area include Mediterranean moray, Turkish wrasse, white seabream, and various species of wrasses and bream. Facilities including showers and changing rooms are available. Given the depth, divers should manage bottom time carefully, with typical dives lasting 45 minutes. Water temperatures fluctuate between 17C and 23C throughout the year.