Los Covachos is an advanced open sea dive site located in Cartagena, Spain. The topography is diverse, featuring a combination of walls, pinnacles, and the remains of several fishing boats intentionally sunk in the early 2000s. Divers can expect depths reaching 40 metres. Due to the exposed nature of the site, boat access is required. Conditions are characterised by strong currents, which may necessitate performing safety stops while drifting in the blue. Water temperatures range from 14C to 17C throughout the year. This site is suited for experienced divers comfortable with deep water and current management.

Cueva de la Virgen is a diverse marine site near Cartagena, Spain, offering a combination of cave, wreck, and artificial reef topography. Divers can explore a 12-metre tunnel and visit an image of the Virgen del Carmen located at a depth of 15 metres. The site is accessible by boat and is suitable for beginners, with depths ranging from 3 to 25 metres and an average of 15 metres. Conditions are generally mild, though the site features an overhead environment and a halocline caused by freshwater spring mixing. Visibility typically ranges between 10 and 30 metres, and night diving is permitted.

Playa de Calabardina provides a diverse underwater environment featuring reefs, walls, caves, wrecks, and seagrass beds. Accessible via shore entry, the site is suitable for beginners with depths ranging from 5 to 25 metres and an average of 15 metres. Conditions are generally mild, with visibility fluctuating between 5 and 25 metres. Water temperatures vary from 15C in winter to 21C in August. Divers should remain vigilant regarding boat traffic, as the area is active with surface vessels. A full range of facilities is available on-site, including equipment rental, air fills, and guided tours, supporting multi-dive planning.

Linea Pecios Fontanet Hermanos Serrano is a wreck and artificial reef site located in Cartagena, Spain. The site sits at a consistent depth of approximately 12 metres, making it suitable for beginner divers. Access to the site is by boat, and divers can expect mild currents during their 45-minute dives. Water temperatures fluctuate throughout the year, ranging from 15C in the winter months to 26C in August. Local facilities supporting the site include parking, air fills, equipment rental, dive shops, and guided tours.

Piedra de Santa Maria is a reef site located off the coast near Aguilas and Calabardina. The site reaches depths between 17 and 21 metres, with an average depth of 19 metres. Access is by boat only, and the site is suitable for beginners due to the lack of current. Visibility varies significantly, ranging from 5 to 30 metres. Water temperatures fluctuate between 15C and 23C throughout the year. Species recorded around this area include Mediterranean Moray, Common Octopus, European Common Cuttlefish, Great Barracuda, various wrasses, Scorpionfish, Cratena Slug, Kingfish, Rock Cod, Turkish Wrasse, Stargazer, Fried Egg Jellyfish, Groupers, and Conger Eel.

Punta del Viento is a reef and wall site located off the coast near Aguilas and Calabardina. The topography features a descent ranging from 15 to 28 metres, with an average depth of 25 metres. Conditions are generally mild, with visibility typically between 5 and 10 metres. Access is exclusively by boat, requiring divers to enter and exit directly from the vessel. Due to the presence of sharp coral and rocks on the reef and wall, divers should maintain careful buoyancy control to avoid contact. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection for the 50-minute typical dive duration.

Playa del Pino is a shore-entry reef site located between Aguilas and Calabardina. The topography consists of a mix of sand and rocks, creating a sheltered environment suitable for beginners. Depths range from 1 to 7 metres, with an average of 4 metres. Conditions vary, with visibility between 1 and 10 metres and mild currents. Species recorded around this area include Mediterranean Moray, Common Octopus, Great Barracuda, European Common Cuttlefish, various wrasses, Scorpionfish, Stargazer, Fried Egg Jellyfish, Rock Cod, Turkish Wrasse, Conger Eel, Cratena Slug, Kingfish, and Groupers. Parking is available at the site. Typical dives last approximately 45 minutes, and the site is rated 3 out of 5 for snorkelling.

Cala Rayo is a shallow reef and wall site located 500 metres offshore from Cartagena, Spain. Reaching depths of 1 to 6 metres with an average of 4 metres, this site is suitable for beginners. Visibility ranges from 10 to 30 metres, allowing for clear observation of the reef structure. Access is by boat only, and divers should be prepared for moderate currents. Due to the presence of sharp coral and rocks, protective footwear and gloves are recommended to avoid injury. Typical dive times are approximately 45 minutes. As there are no fixed facilities at the site, confirm boat arrangements with a local operator in Aguilas or Calabardina before travelling.