Koroni Island in Attica, Greece, features a wall topography accessible via shore entry. Divers can explore three distinct shorelines that offer varying depths reaching down to 30 metres. Conditions at this site are variable, with currents that require attention from divers. Due to the potential for boat traffic and changing currents, divers should remain aware of their surroundings throughout the dive. The site is suitable for beginners, though the depth profile and environmental factors necessitate careful planning. Water temperatures fluctuate throughout the year, ranging from 15C in the cooler months to 25C during the peak of summer.

Praso Island offers a varied underwater landscape featuring rocky terraces, seagrass meadows, and sandy patches. Located 1000 metres from the shore, this site is accessible only by boat and provides a sheltered alternative when offshore conditions are rough. Divers can explore depths ranging from 8 to 30 metres, with an average depth of 18 metres. The site experiences mild currents and visibility typically between 10 and 25 metres. Water temperatures fluctuate throughout the year, ranging from 15C in late winter to 25C in August. Hazards include sea urchins and sharp coral formations. The site is suitable for beginner divers, with typical dive times lasting approximately 45 minutes.

Avlaki Beach in Attica is a shore-entry reef site suitable for beginners. The topography features a gentle profile with depths ranging from 2 to 12 metres, averaging 7 metres. Conditions are generally mild, though divers and snorkellers should remain aware of boat traffic in the area. Visibility varies significantly, spanning 5 to 30 metres depending on conditions. The site is protected from north-eastern winds, providing a stable environment for training and recreational activities. On-site facilities include showers, changing rooms, a cafe, and first-aid equipment. A typical dive duration at this location is approximately 50 minutes.

Panorama Beach in Attica is a reef site suitable for both diving and snorkelling. The site features depths ranging from 2 to 18 metres, with an average depth of 10 metres. Access is via a shore entry, and conditions are generally mild with visibility between 5 and 20 metres. Water temperatures fluctuate seasonally between 15C and 25C. The site is well-suited for beginners and those completing entry-level certifications. Divers should be aware of boat traffic in the area and the presence of sea urchins on the seabed. Facilities at the beach include a cafe and toilets.

Tourko Limano in Attica, Greece, offers a diverse underwater environment featuring a combination of reef, wall, and wreck topography. The site reaches depths between 10 and 30 metres, with an average depth of 20 metres. Access is strictly by boat, and divers should be aware of boat traffic in the area. Conditions are generally suitable for intermediate divers, with mild currents and visibility ranging from 10 to 20 metres. Water temperatures fluctuate throughout the year, ranging from 15C in the winter to 25C in August. A typical dive at this location lasts approximately 45 minutes.

Kabouri in Attica, Greece, offers a diverse underwater topography featuring reefs, walls, caves, and canyons. Accessible only by boat, the site provides depths ranging from 10 to 30 metres. Divers can expect mild currents and visibility between 10 and 25 metres. The site is suitable for beginners and supports night diving, with typical dives lasting 45 minutes. Water temperatures fluctuate throughout the year, ranging from 15C in the winter months to 25C in August. Facilities available nearby include parking, a dive shop, air fills, and equipment rental. Divers should remain aware of boat traffic and depth limitations while exploring the submerged rock formations.

Profitas Illias in Attica, Greece, features a combination of shallow reef and a wall that descends to 30 metres. With an average depth of 15 metres and mild currents, the site is suitable for beginner divers. Visibility ranges from 5 to 20 metres. Divers should be aware of boat traffic in the area and must use a surface marker buoy upon ascent. The site is accessible by boat, and night diving is permitted. Divers can expect to encounter octopus, snowflake moray, scorpionfish, honeycomb grouper, sea bream, yellowtail damselfish, nudibranchs, and sponges.

The Groupers Nest is an advanced dive site in Attica, Greece, featuring a reef and wall structure that descends to depths of 35 to 40 metres. With an average depth of 38 metres, this site requires boat access and is suited for experienced divers comfortable with deep diving. Visibility varies between 10 and 30 metres, while currents remain mild. Due to the significant depth, nitrogen narcosis is a primary hazard, necessitating careful dive planning and conservative bottom times. Divers should monitor their mental clarity throughout the descent and maintain strict adherence to no-decompression limits during the typical 25-minute dive profile.