Piedra Blanca is a deep reef site located off the coast of Cartagena, Spain. The topography features depths ranging from 20 to 35 metres, with an average depth of 27 metres. Divers must access this site by boat. Conditions are generally manageable with mild currents and visibility typically between 10 and 30 metres. Water temperatures fluctuate between 14 and 18 degrees Celsius, necessitating appropriate thermal protection. Due to the depth and the presence of sea urchins on the reef structure, this site is suited for intermediate divers who possess solid buoyancy control. Divers should exercise caution regarding hand and knee placement to avoid contact with sea urchins.

Cala Morena is a shore-entry reef dive located in Cartagena, Spain. The site features a reef structure that slopes from shallow depths down to 30 metres, making it suitable for beginner divers. Conditions are generally manageable, with mild currents and visibility ranging between 10 and 30 metres. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year, necessitating the use of a 5mm wetsuit or thicker to maintain comfort. As facilities at the site are unconfirmed, divers should arrive prepared with their own water and supplies. This location provides a straightforward environment for those looking to build confidence in open water.

Playa el Portús is a coastal site in Cartagena featuring a mineral landscape of cliffs and golden sand. The underwater topography consists of rocky reefs, caves, and overhangs located approximately 50 metres from the shore. Depths range from 2 to 15 metres, with an average of 8 metres, making the site suitable for beginners. Conditions are generally mild with visibility between 10 and 20 metres. Access is via a shore entry. Divers and snorkellers should be aware of overhead environments within the caves and the presence of sea urchins on the rocky substrate. Facilities at the beach include parking, toilets, showers, a rinse station, and a cafe.

The Harrier is one of three contemporary wrecks at the CBA Wrecks site near Cabo de Palos, Spain. Created by the Navy Diving Center, these structures rest on a sandy seabed and include a tugboat, a helicopter, and the Harrier aircraft. This site is accessible by boat and is suitable for beginner divers. Visibility at the site varies between 5 and 15 metres. Water temperatures fluctuate throughout the year, ranging from 15C in the winter months to 27C in August. The wrecks provide artificial structure in a sandy environment, serving as a refuge for local marine life.

Pecios del C B A is a wreck and artificial reef site located off Cabo de Palos, Spain. Reached exclusively by boat, the site sits at depths ranging from 14 to 22 metres, with an average depth of 18 metres. Visibility is variable, typically between 5 and 10 metres. The site is suited for advanced divers who can maintain disciplined buoyancy while navigating the wreck structures. Divers should be aware of entanglement risks and sharp edges on both the wrecks and surrounding rocks. Protective gloves are recommended to avoid injury from these sharp surfaces. Water temperatures fluctuate between 15C and 23C throughout the year.

Cueva de la Virgen is a cave and wall dive site in Cartagena, Spain, accessible only by boat. The site features a rock cavity with an entrance at 15 metres, leading to a vault open to the surface that admits natural light. Divers can observe stalactites and stalagmites within the cave structure. A freshwater spring flows from the cave, creating a halocline effect. The surrounding area includes wall topography and sandy sections. Depths at the site range from 5 to 16 metres, with visibility varying between 1 and 30 metres. Due to the cave environment and depth, this site is suitable for advanced divers.

Cala Cortina is a sheltered urban bay near Cartagena, Spain, popular for snorkeling. The site features rocky artificial reefs and a small islet, providing a protected environment for beginners. Underwater, the area includes Posidonia meadows. Access is via the shore. Water temperatures fluctuate throughout the year, ranging from 15C in the winter months to 27C in August. Due to its protected status, the bay offers relatively calm conditions suitable for those new to snorkeling.

Bajo de Escombreras is a deep reef located 2000 metres off the coast of Cabo de Palos. The site features a significant drop-off, with depths ranging from 25 to 45 metres and an average depth of 35 metres. Due to the moderate currents and depth, this site is strictly for advanced divers. Visibility typically spans 10 to 30 metres. Water temperatures are cool, ranging between 14 and 17 degrees Celsius throughout the year, necessitating appropriate thermal protection. Boat access is required for all dives, and the use of a surface marker buoy is strongly advised. Night diving is permitted for experienced divers who can manage the site conditions.