El Tajo is a wall dive located 1000 metres off the coast of Cartagena, Spain. The site features a wall dropping from 14 to 30 metres, with an average depth of 20 metres. Access is by boat only. While conditions are generally mild, currents can become strong, requiring careful monitoring of depth and proximity to the boat exit point. Divers should plan to work into the current at the start of the dive. Visibility typically ranges between 10 and 25 metres, and water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year. The site is suitable for beginners, though caution regarding current changes is advised.

Punta Falcon is a boat-access site featuring a wall and reef system that reaches depths between 15 and 34 metres, with an average depth of 25 metres. This site is suited for expert divers due to strong currents and the requirement for decompression diving protocols. Visibility typically ranges from 15 to 25 metres. Water temperatures are cool, fluctuating between 14 and 18 degrees Celsius throughout the year, necessitating appropriate thermal protection. Divers should maintain strict buoyancy control and monitor depth closely to manage risks associated with nitrogen narcosis and decompression requirements. Seagrass zones located in the shallower sections of the site serve as a useful reference point during ascent.

La Garita is a wall dive located near Cartagena, Spain, situated between the Corralón and Tajo Colorao. The site is named for the historic anti-aircraft searchlight position that once supported the coastal batteries of Cabo Tiñoso. Divers access the site by boat, descending via a mooring line to explore the wall, which reaches depths of up to 29 metres. Conditions are generally mild, though divers should remain aware of boat traffic and depth limitations. This site is suitable for beginners and offers a unique historical backdrop for underwater exploration.

Cala Cerrada is a sheltered dive site located near Cartagena, Spain, accessible by boat. The site features a combination of wall and wreck topography, with depths ranging from 8 to 12 metres. Due to the protection provided by surrounding cliffs, the area offers calm water conditions suitable for beginners and training activities. Visibility at the site typically ranges between 5 and 10 metres. Species recorded around this area include Mediterranean moray, common octopus, wrasses, bream, and various scorpionfish. Divers should remain aware of boat traffic in the vicinity.

El Corralón is a shallow dive site located east of Punta de La Azohía in Cartagena, Spain. The topography features a mix of seagrass meadows, rocky outcrops, and boulder-strewn areas reminiscent of a riverbed. Divers typically anchor within the cove at a depth of 6 metres before following the rock formations as they descend gradually to a maximum depth of 20 metres, with an average depth of 12 metres. This site is accessible only by boat and is well-suited for beginners due to the mild currents and visibility ranging from 10 to 25 metres. Typical dives last approximately 40 minutes.

Cala Abierta is a marine dive site located between La Azohia and Cabo Tinoso in Cartagena. The topography features a mixed bottom of rock, sand, and gravel, alongside an extensive meadow of Posidonia oceanica. Divers can explore a wall and reef structure ranging from 6 to 30 metres in depth, with an average depth of 22 metres. The site is accessible by both boat and shore, with mild currents and visibility consistently around 15 metres. Suitable for beginners, this site offers a typical dive duration of 64 minutes. Water temperatures fluctuate between 15C and 19C throughout the year. Divers should be aware of potential hazards including entanglement and sharp coral.

Tajo Colorao is a wall dive located along the cliffs of Cabo Tiñoso, west of Cala Cerrada. The site is named for the distinctive reddish tones of the rock face. Divers access the wall via a boat mooring located a short distance from the cliff. The dive typically lasts 40 minutes at depths ranging from 14 to 30 metres, with an average depth of 20 metres. Conditions are generally mild, with visibility between 10 and 15 metres. This site is suitable for beginners, though divers should be aware of the overhead environment presented by the wall structure.

El Muellecico in Cartagena is a wall and reef dive site named for a rock formation resembling a small pier. The topography features a rocky slope that descends vertically from 7 metres down to 30 metres, meeting sandy seabeds. The site consists of steep rock faces interspersed with gentle slopes of rubble and loose boulders detached from the cliff. Due to the depth and terrain, this site is suited for intermediate divers. Access is exclusively by boat. Divers should be aware of the depth and sharp coral formations present at the site. Conditions are generally characterised by mild currents, with water temperatures ranging between 15C and 19C throughout the year.