Cuevas in Cartagena, Spain, offers a diverse underwater landscape defined by vertical walls and numerous caves and grottos. Suitable for beginners, the site features depths ranging from 12 to 23 metres. Divers access the site from the shore, encountering mild currents and visibility between 10 and 30 metres. Water temperatures fluctuate between 15C and 21C throughout the year, with potential for thermoclines or mixed fresh and saltwater within the cave systems. Hazards at this site include entanglement risks, overhead environments, and low visibility. The topography is composed of Triassic-age phyllite rock formations, characteristic of the Cabo Tiñoso coastal cliffs.

Cueva del Lago is a marine cave system located in Cartagena, Spain. This site is accessible only by boat and features depths ranging from 3 to 12 metres, with an average depth of 7 metres. As an overhead environment, it requires strict buoyancy control and the use of primary and backup torches. Conditions include mild currents and water temperatures fluctuating between 15C and 26C throughout the year. While suitable for beginner divers, the cave structure necessitates close adherence to guide instructions. Species recorded around this area include Mediterranean moray, common octopus, wrasses, bream, and various scorpionfish, though these are not confirmed sightings at this specific location.

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.

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.

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.

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.

Cabo Tinoso is a boat-accessible site near Cartagena offering diverse topography including reefs, walls, drop-offs, caves, and artificial reefs. Depths range from 3 to 54 metres, with an average of 25 metres. Visibility typically spans 15 to 30 metres, allowing for clear observation of the varied underwater terrain. Water temperatures remain between 14 and 17 degrees Celsius throughout the year. The site is suitable for intermediate divers, though it presents hazards including deep water, overhead environments, and mild currents that may intensify. Night diving is permitted. Divers should plan bottom times carefully and monitor depth gauges, particularly when exploring the caves and wrecks.

Punta De Las Animas is a marine dive site located 1500 metres off the coast of Cartagena, Spain. The site features a rocky wall that drops to depths between 6 and 30 metres, with an average depth of 20 metres. The topography is characterised by steep, near-vertical walls and numerous caves. Access to this site is by boat only. Divers should be aware that the site is deep, and conditions typically involve mild currents. With a water temperature range of 15 to 19 degrees Celsius, this site is suited for intermediate divers looking to explore varied underwater rock formations and cave structures.