Remezzo Reef in the Santorini caldera offers a diverse underwater topography featuring a reef, wall, and cave system alongside an artificial reef. The site is accessible from the shore and suits beginners, with depths ranging from 8 to 45 metres and an average depth of 25 metres. Divers experience mild currents and visibility between 10 and 30 metres. Water temperatures fluctuate between 17C and 21C throughout the year. Hazards include boat traffic, deep sections, and overhead environments. Species recorded around this area include Turkish Wrasse, Bream, White Seabream, Castagnole, Mediterranean Moray, Indian Lionfish, and various nudibranchs such as the Cratena Slug.

Old Mine in Santorini offers a diverse underwater landscape combining natural reef, cave sections, and artificial reef structures. The site ranges from shallow depths down to 30 metres, with an average depth of 18 metres, making it suitable for intermediate divers. Visibility typically spans 15 to 30 metres, assisting with navigation through the varied terrain. Currents are generally mild, allowing for a relaxed pace during the typical 45-minute dive. Access is flexible, with both shore and boat entries available. Divers should check locally for facility availability before planning their visit, as services can vary by season.

Red Beach in Santorini is defined by its dramatic volcanic topography, featuring towering iron-rich red cliffs that extend into the underwater environment. Divers and snorkellers can explore a landscape of volcanic boulders, small caverns, and wall formations. The site offers visibility ranging from 20 to 30 metres. Conditions are generally suitable for intermediate divers, though the area is subject to variable currents, surf, and overhead environments within the caves. Access is available via both shore and boat entries. On-site facilities include parking, showers, changing rooms, toilets, and a cafe.

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.

Mesa Pigadia in Santorini is a secluded cove defined by dark volcanic cliffs and traditional syrmata cave boat houses. The site features a mix of reef, cave, and artificial reef structures, offering a varied topography for divers and snorkellers. Depths range from 2 to 12 metres, with an average of 8 metres. Visibility typically spans 10 to 30 metres, though conditions vary. Divers should be aware of overhead environments within the caves and the presence of sea urchins. Moderate currents are common, making this site suitable for intermediate divers. Access is available via both shore and boat, with facilities including parking, a cafe, toilets, and boat charter services.

Kabia Reef in Santorini, Greece, offers a combination of reef and cave topography suitable for beginners. Divers and snorkellers can explore depths ranging from 5 to 12 metres, with an average depth of 8 metres. Visibility at the site typically spans 10 to 30 metres. Access is available via both shore and boat entries. Facilities at the location include parking, toilets, showers, changing rooms, and a cafe. Due to the presence of caves, divers should be aware of the overhead environment, and all visitors should remain cautious of local boat traffic. Typical dives at this site last approximately 60 minutes.

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.

Caldera Beach in Santorini offers a diverse underwater environment featuring a reef, wall, cave, and artificial reef structures. Located within the volcanic crater, the site provides a unique topography where the seabed drops off quickly. Depths range from 3 to 20 metres, with an average of 12 metres, making it suitable for intermediate divers. Access is via a shore entry, and visibility typically spans 20 to 50 metres. The site is well-supported by local facilities, including parking, a cafe, and a dive shop offering guided tours. Typical dives last around 50 minutes, and the location is also highly rated for snorkelling.