Omprogialos Beach in Rethymno, Greece, features a reef accessible via both shore and boat entry. The site is suitable for beginners, with depths ranging from 6 to 25 metres. Visibility at the site typically spans 10 to 30 metres. Divers and snorkellers should be aware of potential strong currents and surf conditions. The site is open for day and night diving, with a typical dive duration of 45 minutes. On-site facilities include parking, toilets, and a cafe, providing convenient support for visitors before and after their time in the water.

Elephant's Cave in Rethymno, Greece, offers a diverse underwater experience featuring a reef, a wall, and a cave system. The site ranges from 5 to 33 metres in depth, with an average of 18 metres. Divers encounter moderate currents and visibility between 30 and 40 metres. Access is possible by both shore and boat, though shore entries require caution due to surf and shore breaks. Given the overhead environment within the cave and the maximum depth, this site is suited for intermediate divers with strong buoyancy control. Guided tours are recommended for first-time visitors to navigate the cave and manage the site's specific conditions effectively.

Elephant Cave in Rethymno is a submerged cavern featuring two distinct domes adorned with stalactites and stalagmites. Divers can observe fossilised elephant remains within the cave structure. The site is reached by boat and is suitable for intermediate divers, with depths ranging from 10 to 16 metres and an average depth of 10 metres. Conditions include mild currents and visibility between 10 and 30 metres. The water temperature fluctuates seasonally from 16C to 26C. Due to the overhead environment and potential for low visibility, this site requires appropriate cave diving experience. The habitat supports a variety of Mediterranean reef fish and invertebrates.

Karga Island is a boat-access reef located off the coast of Rethymno, Greece. The site features depths ranging from 5 to 12 metres, with an average depth of 5 metres, making it suitable for beginner divers. Visibility is consistent at 30 metres, and currents are generally mild. The site is accessible only by boat, and night diving is available for those interested in exploring the reef after dark. Typical dives last approximately 45 minutes. Water temperatures fluctuate throughout the year, ranging from 16C in February and March to 26C in August and September.

Cement Mixer Wreck, located on the right side of Koutalas Beach in Rethymno, offers a diverse underwater environment for beginners. This shore-entry site features a wreck, a cave, a wall, and a reef, with depths ranging from 3 to 20 metres. Visibility is consistently around 30 metres, providing clear views of the topography. Divers should be aware of sea urchins on rocky surfaces during entry. The cave presents an enclosed overhead environment; stay near the entrance unless specifically trained for cave diving. Currents are variable, so check conditions before entering. Parking is available on-site, and guided tours are offered to help divers navigate the layout.

God's Cave in Rethymno, Greece, is a boat-access cave dive suitable for intermediate divers. The site features an overhead environment at depths between 20 and 30 metres, with visibility ranging from 10 to 30 metres. Inside the cave, a halocline layer creates a shimmering visual distortion, requiring divers to move slowly. As this is an overhead environment, maintaining awareness of the exit route and monitoring air supply is essential. Divers should carry both primary and backup torches, as natural light diminishes rapidly within the cave. The surrounding marine habitat supports various reef fish and invertebrates typical of the region. Currents at this site are generally mild.

Lighthouse Wall in Rethymno, Crete, is a wall and drop-off dive site suitable for beginners. The wall descends from 10 metres to a maximum depth of 35 metres, with shallower sections available for less experienced divers. Access is by boat only. Visibility typically ranges between 10 and 30 metres. Currents at this site are variable, so divers should confirm conditions with their local dive centre before entry. The site supports a variety of Mediterranean reef fish and invertebrates within its wall habitat. Night diving is available, offering a different perspective of the site and its resident marine life.

Rodakino West is a shallow reef dive located in Rethymno, Greece, suitable for beginners. The site features a consistent depth of 4 to 6 metres, allowing for relaxed dives averaging 45 minutes. Divers experience mild currents and visibility ranging from 10 to 30 metres. Both shore and boat entries are available. Due to the presence of sharp coral and rocks on the seabed, divers should avoid contact with the reef and exercise caution during entry and exit to prevent injury. The site is well-equipped with facilities including parking, toilets, showers, changing rooms, and a cafe, making it a convenient location for a day of diving.