Marathon Cape in Attica, Greece, offers a straightforward wall and reef dive suitable for beginners. The site features depths ranging from 2 to 30 metres, with an average depth of 15 metres. Access is exclusively by boat, and divers encounter mild currents. The topography consists of a wall and reef structure, where divers should exercise caution to avoid sharp rocks and coral. Entanglement with fishing debris is a potential hazard, so keeping equipment streamlined is recommended. Visibility can fluctuate based on weather and seasonal conditions, making it advisable to consult with your boat operator before departure. The site supports a variety of Mediterranean reef fish and invertebrates within its rocky habitat.

The Cleio shipwreck lies at depths between 24 and 28 metres, offering a combination of wreck and reef exploration. The structure has become a substrate for sponges, while moray eels inhabit its recesses. Divers frequently encounter grouper, sea bream, and yellowtail damselfish around the hull, with amberjack occasionally passing in the open water. Nudibranchs are also present for those observing the substrate closely. Access is by boat only, and the site features moderate currents. Visibility typically ranges from 10 to 20 metres. Due to the depth and potential for sharp metal and rock, this site is suitable for advanced divers who can manage their bottom time and profile effectively.

Seals Cave in Attica offers a combination of wall diving and cave exploration. The site reaches depths of 25 metres with consistent visibility of 20 metres and mild currents. Divers must navigate an overhead environment within the cave, requiring careful buoyancy control to maintain visibility. Access is by boat only, and divers should be aware of active boat traffic in the area. Due to the overhead environment and depth, this site is suited for intermediate divers. Always deploy a surface marker buoy before ascending to ensure visibility to passing vessels. The site is best accessed early in the day to avoid increasing boat traffic.

Schinias Bay is a shore-accessible reef located on the Attica coast, suitable for beginner divers. The site features a reef that begins in the shallows and descends to a maximum depth of 25 metres. Divers can expect mild currents and visibility ranging from 10 to 20 metres. Due to the rocky bottom and crevices, sea urchins are common; divers should shuffle their feet when entering from the shore and exercise caution when placing hands or knees on the substrate. Water temperatures fluctuate between 15C and 25C throughout the year, necessitating a seasonally appropriate wetsuit. On-site facilities include parking, toilets, showers, changing rooms, a cafe, and a dive shop.

Psilos Kavos in Attica offers a diverse underwater landscape featuring a wall, drop-off, reef, and cave. The site is accessible by boat and is suitable for beginners, with depths ranging from 3 to 30 metres and an average depth of 14 metres. Conditions are generally mild with visibility between 5 and 30 metres. Due to active boat traffic, divers must deploy a surface marker buoy before ascending. The site is open for night diving, providing opportunities to explore the varied topography after dark. Divers should exercise caution around the reef to avoid contact with sharp coral and rocks.

Old Quarry is a wall dive in Attica, Greece, featuring a rock face that descends from 10 metres to a maximum depth of 30 metres, with an average depth of 15 metres. Access is by boat, and the site is suitable for beginner divers due to the mild currents. Visibility varies between 5 and 20 metres. The wall surface is sharp, requiring careful buoyancy control to avoid contact. Divers should remain aware of the rock face, particularly when visibility is lower. The habitat supports a variety of reef fish and invertebrates typical of the region.

The Kassandra shipwreck is a deep wreck dive located off the coast of Attica, Greece. Resting at depths between 20 and 32 metres, the site requires advanced diving skills and precise buoyancy control. Divers access the wreck exclusively by boat. Conditions include moderate currents that can strengthen significantly at depth, requiring careful planning and monitoring of bottom time. Visibility typically ranges from 10 to 25 metres. Due to the potential for strong currents, it is recommended to descend close to the structure for reference and to consult with local boat operators regarding current conditions before entering the water.

Small river is a reef site in Attica, Greece, offering a straightforward dive for beginners. The reef topography extends from the shallows to a maximum depth of 30 metres, allowing divers to choose their preferred depth. Entry is via the shore, and the site features a mild current. Visibility typically ranges between 15 and 25 metres, though conditions can shift. Divers should be aware of active boat traffic overhead and are advised to deploy a surface marker buoy before ascending. Hazards include sharp coral and the presence of scorpionfish, which can sting if touched. Always check local conditions before entering the water.