Perissa Rock 1 is a reef site in Santorini, Greece, offering a straightforward dive at depths between 15 and 18 metres. With a mild current and visibility ranging from 10 to 25 metres, it is well-suited for beginner divers. Access is possible via both shore and boat. Divers should exercise caution regarding sharp rocks and sea urchins on the reef structure; wearing thick-soled boots is recommended for shore entries. On-site facilities include parking, toilets, showers, changing rooms, air fills, and equipment rental, supporting a comfortable surface interval. Typical dive times are approximately 45 minutes.

Kamari Rock is located at the southern end of Kamari Beach, Santorini, featuring the Mesa Vouno rock formation. This site offers a varied topography including reefs, walls, caves, and drop-offs. Divers and snorkellers can explore depths ranging from 2 to 12 metres, with an average depth of 6 metres. The site is accessible from the shore and is suitable for beginners, with mild currents and visibility typically between 20 and 30 metres. Water temperatures fluctuate between 17C and 25C throughout the year. Facilities available on-site include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a dive shop, guided tours, a cafe, and first-aid services.

Perissa Rock is located at the northern end of Perissa Beach, situated at the base of the Mesa Vouno mountain. This reef and artificial reef site offers shore access, making it suitable for beginners. The underwater topography features a rock face covered in marine growth, with depths ranging from 2 to 10 metres and an average depth of 6 metres. Divers and snorkellers can expect mild currents and visibility between 15 and 25 metres. Water temperatures fluctuate between 17 and 25 degrees Celsius throughout the year. Facilities available at the site include parking, showers, a rinse station, toilets, changing rooms, and a dive shop offering equipment rental and guided tours.

Caldera Dive in Santorini, Greece, offers a diverse underwater landscape featuring a reef, wall, wreck, cave, and artificial reef. The site is accessible by boat and caters to beginners, with depths ranging from 4 to 30 metres. Visibility is generally between 20 and 30 metres, and currents are typically mild. Divers should be aware of sharp rocks and coral edges, as well as the potential for jellyfish and downward currents in deeper sections. On-site facilities include a dive shop providing equipment rental, air fills, and guided tours. A typical dive lasts 45 minutes.

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.

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.

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.

3 Rocks is a shallow reef site in Santorini, Greece, featuring rock formations at depths between 5 and 10 metres. With an average depth of 8 metres, it is well-suited for beginner divers. Visibility typically ranges from 10 to 30 metres, though conditions vary. Divers may access the site via shore or boat entry. Currents are generally mild but can shift without warning, making local consultation regarding conditions advisable before entry. Water temperatures fluctuate throughout the year, ranging from 17C in the cooler months to 25C during the summer. Typical dives at this location last approximately 30 minutes. Hazards to be aware of include jellyfish, lionfish, and sea urchins.