Pachia Reef in Kos, Greece, is a deep-water site featuring vertical pinnacles and wall topography that rises from depths exceeding 40 metres. The site is located 1000 metres from the shore and requires boat access. Divers encounter a landscape of vertical structures covered in sponges and coralligenous growth. Conditions are characterised by variable currents and high visibility, typically ranging between 30 and 40 metres. Due to the significant depth and potential for nitrogen narcosis, this site is strictly for advanced divers. Water temperatures fluctuate between 17C and 21C throughout the year. Hazards include decompression risks, deep water, and sharp coral formations.

Kateros reef is a marine dive site located off the coast of Kos, Greece. This reef offers depths reaching 40 metres and is suitable for advanced divers. Access to the site is by boat only. Divers can expect moderate currents and high visibility, typically ranging between 30 and 40 metres. Water temperatures fluctuate between 17C and 21C throughout the year. Divers should be aware of the presence of lionfish at this location. The site is rated 4 out of 5 for diving quality.

Kaloutsi reef is an expansive underwater reef system located off the coast of Kos, Greece. The site reaches depths of up to 30 metres and is accessible exclusively by boat. Divers can expect visibility ranging from 20 to 40 metres, though currents are variable. The site is suitable for beginners, though divers should remain aware of potential boat traffic and depth. Species recorded around this area include European Parrotfish, Turkish Wrasse, White Seabream, Goatfish, Rabbitfish, Fireworm, Eleven-armed Sea Star, various crabs, bream, Brittle Star, Madeira Rockfish, Wide Eyed Flounder, Painted Comber, and snails.

Barracuda Reef in Kos, Greece, offers a diverse underwater topography featuring a reef, wall, pinnacle, and cave system. Suitable for beginners, the site reaches depths between 14 and 30 metres, with an average depth of 20 metres. Divers and snorkellers can access the site via shore or boat. Conditions include moderate currents and visibility ranging from 15 to 30 metres. Water temperatures fluctuate between 17C and 23C throughout the year. Due to the presence of boat traffic, divers should exercise caution during ascents and descents. The site is well-supported by local dive shops and boat charter services, with typical dives lasting approximately 45 minutes.

Agios Savvas is a reef site located in Kos, Greece, offering accessible shore entry for divers. The site is suitable for beginners and reaches a maximum depth of 7 metres. Conditions are generally stable, with visibility ranging from 20 to 40 metres and mild currents. Water temperatures fluctuate between 17C and 26C throughout the year. The site is also suitable for night diving, with typical dives lasting around 30 minutes. As a shallow reef, it provides a straightforward environment for those developing their skills or looking for a relaxed underwater experience.

Stingray Champagne is a shallow reef site in Kos, Greece, characterised by a sandy bottom featuring volcanic bubbles. The site reaches a maximum depth of 8 metres, making it suitable for beginner divers. Access is by boat only, and divers should remain aware of boat traffic in the area. Conditions are generally mild, with water temperatures ranging from 17C to 26C throughout the year. Species recorded around this area include European Parrotfish, Turkish Wrasse, Rabbitfish, Goatfish, White Seabream, Painted Comber, Bream, crabs, brittle stars, Wide Eyed Flounder, Madeira Rockfish, Eleven-armed Sea Stars, fireworms, and various snails.

The Well is a wall dive located in Kos, Greece, formed by a volcanic fault line. The site offers depths ranging from shallow water down to 40 metres, making it accessible for beginners. Divers can access the site via both shore and boat entries. Conditions are generally stable with mild currents and visibility typically between 10 and 25 metres. Water temperatures fluctuate between 17C and 21C throughout the year. Divers should be aware of the presence of lionfish in the area. The topography is defined by the wall structure and the presence of large sponges.

Cape Krikelos is a challenging reef and wall site located 1000 metres off the coast of Kos, Greece. This drift dive features vertical rock formations and distinctive stone rings known as Krikelos. Divers can expect depths ranging from 8 to 30 metres, with an average depth of 18 metres. Due to strong currents, this site is suitable for advanced divers only. Visibility is high, typically between 20 and 30 metres. Access is by boat only, with typical dive times around 45 minutes. Hazards include strong currents, significant depth, and the risk of nitrogen narcosis.