Lava Reef in Santorini features volcanic geology comprising a reef, wall, drop-off, and cave. The site is suitable for beginners, with depths ranging from 10 to 23 metres and an average depth of 17 metres. Divers experience mild currents and visibility between 10 and 30 metres. Access is by boat only, with typical dives lasting 50 minutes. Hazards include sharp volcanic rock and coral, sea urchins in crevices, and an overhead environment within the cave. Divers should monitor their depth and buoyancy carefully. Facilities available include equipment rental, air fills, and guided boat tours.

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.

Pavlos Gulf in Santorini offers a diverse underwater landscape featuring a reef, a wall, and a cave system. The site is suitable for intermediate divers, with depths ranging from 6 to 30 metres and an average depth of 20 metres. Visibility is typically between 15 and 30 metres, supported by mild currents. Divers can access the site via shore or boat. On-site facilities include changing rooms, showers, and air fills, allowing for convenient back-to-back dives. The cave section requires careful planning of air supply and bottom time. The site is accessible year-round, with water temperatures fluctuating between 17C and 24C depending on the month.

Nea Kameni is located within the Santorini caldera, providing a diverse underwater landscape that includes reef, wreck, and cave formations. Divers can explore depths ranging from 4 to 30 metres, with an average depth of 20 metres. The site is accessible only by boat, situated 1000 metres from the shore. Conditions typically feature mild currents and visibility between 10 and 30 metres. Due to the presence of overhead environments in the cave and wreck sections, as well as active boat traffic, this site is suited for intermediate divers. Night diving is also available. Water temperatures fluctuate between 17C and 24C, with potential variations near the hot springs of Palea Kameni.

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.

Akrotiri Reef is a marine site located 500 metres off the coast of Santorini, Greece. Accessible only by boat, the reef features depths ranging from 15 to 45 metres, with an average depth of 16 metres. Divers and snorkellers can expect mild currents and visibility between 15 and 50 metres. The site is suitable for beginners, though visitors should be aware of potential surge. Water temperatures fluctuate between 17C and 21C throughout the year. Shore-side facilities at the nearby dive shop include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, and first aid services.

Manthos Reef is a boat-accessible reef located off the coast of Santorini. The site features a significant depth range, starting at 9 metres and extending to 45 metres, with an average depth of 20 metres. Conditions are generally manageable, characterised by mild currents and visibility ranging from 10 to 30 metres. The site is suitable for beginner divers who can explore the shallower sections of the reef structure. Divers have access to comprehensive shore facilities, including showers, changing rooms, and equipment rental, provided by local dive shops. As the site requires boat access, it is recommended to confirm departure times with your operator in advance.

Alonaki in Santorini offers a varied underwater landscape for intermediate divers, featuring a combination of reef, wall, drop-off, and cave formations. The site ranges from a shallow reef at 5 metres down to a maximum depth of 30 metres, with an average depth of 15 metres. Visibility typically spans 10 to 30 metres. Divers should be aware of surge and swell near the wall and cave entrance, which can push against these features. Sea urchins and sharp coral are present, requiring careful buoyancy control. Both shore and boat entries are available, allowing for flexible access depending on the daily sea state and wind conditions.