Aldan in the Rias Baixas, Spain, offers a diverse underwater environment featuring reefs, walls, and artificial reefs, alongside wreck sites. Suitable for beginners, the site reaches depths between 15 and 40 metres, with an average depth of 15 metres. Divers can access the water via shore or boat, experiencing mild currents during typical 60-minute dives. The site is equipped with full facilities, including a dive shop, equipment rental, air fills, and boat charters. Night diving is available for those interested in exploring after dark. Be aware that low visibility is a potential hazard at this location. Water temperatures remain cool, ranging from 14C to 16C throughout the year.

Pecio Maracaibo is a wreck dive located in the Rias Baixas, Spain, resting at depths reaching 24 metres. This boat-accessible site features a muck-bottom environment and is suitable for intermediate divers. Conditions include mild currents and visibility ranging from 3 to 15 metres. Water temperatures fluctuate between 14 and 17 degrees Celsius throughout the year, necessitating appropriate thermal protection. Divers should exercise caution regarding entanglement risks when navigating the wreck's interior and exterior structures. The site is also suitable for night diving, where the use of a torch is recommended to explore the darker recesses of the vessel.

Ancoradouro is a marine dive site located in the Rias Baixas region of Spain. The site features a consistent depth of 7 metres. Water temperatures at this location vary throughout the year, ranging from 14C in the winter months to 17C during the summer. Given the shallow depth, the site is suitable for divers seeking a straightforward, shallow-water experience. Conditions at this site are variable, and divers should plan accordingly based on the seasonal temperature fluctuations. As a shallow site, it provides a stable environment for those looking to explore the local marine topography at a fixed depth.

Batea Cabezos in the Rias Baixas is a reef and wall site featuring a sandy bottom adjacent to a rocky bed. The site reaches a maximum depth of 16 metres and is suitable for beginner divers. Access is exclusively by boat. Divers should be prepared for water temperatures ranging between 14C and 17C throughout the year. Due to these low temperatures, there is a risk of hypothermia, and appropriate thermal protection is required. The site experiences mild currents, providing a manageable environment for those exploring the varied topography of the reef and wall structures.

Bateas is a unique drift dive located 500 metres offshore in the Rias Baixas. The site is defined by the presence of floating mussel farming structures, which create distinctive light effects and shadows when viewed from the seabed. Divers typically explore at depths between 15 and 25 metres, with an average depth of 20 metres. Access is by boat only. Conditions include moderate currents and visibility ranging from 3 to 15 metres. Water temperatures are cool, fluctuating between 14C and 17C throughout the year. Due to the nature of the structures, divers must be aware of potential entanglement risks, boat traffic, and varying visibility.

O Cabalo is a shore-entry reef dive located in Bueu, Rias Baixas. The site features a rocky reef structure reaching a maximum depth of 16 metres. Visibility varies between 3 and 15 metres, and currents are generally mild. Divers should exercise caution during entry due to potential surf and shore break; protective footwear is recommended to navigate sharp rocks and sea urchins. Water temperatures range from 14 to 17 degrees Celsius, requiring appropriate thermal protection. Species recorded around this area include common octopus, conger eel, various wrasses, and sea stars. On-site facilities include parking, showers, changing rooms, and equipment rental.

Faro Mourisca is a wall and reef dive located in the Rias Baixas, situated between O Cabalo and the Ria de Aldan. The site features the remains of an old lighthouse at the base of the current beacon, which was destroyed by sea action. The base of the structure has a distinct spiral shape and is covered in mussels and crustaceans. Divers can expect depths ranging from 7 to 19 metres, with an average of 15 metres. Access is by boat only, and the site is suited for intermediate divers. Conditions include mild currents and visibility between 10 and 20 metres, with water temperatures ranging from 14C to 17C.

Achondo Naufragio is a deep wreck dive located in the Rias Baixas, Spain. The site sits at depths between 25 and 39 metres in cold Atlantic waters, with temperatures ranging from 14 to 16 degrees Celsius. Divers must be prepared for moderate currents and variable visibility, which typically fluctuates between 5 and 10 metres. Due to the depth and potential for changing conditions, this site is suitable only for advanced divers. Access is strictly by boat, and divers should plan their profiles carefully to manage no-decompression limits. A drysuit or thick wetsuit is recommended for the cold water, and a dive torch is useful for navigating the structure.