Playa de Langosteira is a 2km beach in Spain offering a sheltered reef environment suitable for snorkelers. Located near Fisterra, the southern end of the beach near the Cruz de Baixar provides the most consistent conditions for in-water activity. The site features depths ranging from 2 to 8 metres, with an average depth of 4 metres. Visibility typically fluctuates between 3 and 10 metres. Entry is via the shore, and the area experiences mild currents and occasional surf. Water temperatures are cool, ranging from 14C to 18C throughout the year, which may not be comfortable for extended sessions. Facilities include parking, toilets, showers, and a rinse station.

Galicia Kelp Forest is a marine reef and kelp forest site in Spain, offering depths between 5 and 20 metres with an average of 12 metres. The kelp provides structure in shallower areas, while the reef slope extends across the depth range. Divers should expect moderate currents and variable visibility between 5 and 15 metres. Water temperatures range from 14C to 17C, necessitating a thick wetsuit. Access is via a shore entry that requires careful timing due to surf and a shore break. Protective footwear is recommended to navigate sharp rocks and sea urchins. Facilities including changing rooms, showers, air fills, and equipment rental are available.

Praia dos Cristais is a small cove in Spain known for its seabed covered in smoothed sea glass. Snorkellers can explore the surrounding rock walls, which support a variety of reef fish and invertebrates. This site is suitable for intermediate snorkellers due to the presence of strong currents and surf. Access is via the shore. Water temperatures are cold, ranging from 13C to 19C throughout the year, and the site is generally not considered suitable for comfortable swimming. Snorkellers should exercise caution regarding the physical conditions of the area.

Cala de Agronovo is a secluded cove located in the Rias Baixas region of Spain. This site is accessed via the shore and is rated highly for snorkelling activities. The water temperature at this location ranges from 14C to 17C throughout the year, with the warmest conditions occurring between June and September. Due to the nature of the environment and the shore entry, this site is best suited for intermediate snorkellers. The area is known for its underwater landscapes, though specific marine life observations are not recorded for this location.

Praia da Illa is a shore-entry reef dive located in the Rias Baixas region of Spain. The site features a reef structure at depths ranging from 9 to 14 metres, with an average depth of 11 metres. It is suitable for beginner divers, offering mild currents and visibility between 10 and 30 metres. Water temperatures are cool, typically ranging from 14 to 17 degrees Celsius. Divers should be aware of potential rip currents near the entry point and assess local water movement before descending. On-site showers are available to assist with post-dive comfort in the cooler Atlantic waters.

The Pecio Aries is a cargo ship wreck located in the Rias Baixas, Spain. The vessel sank in 1977 after colliding with the As Lobeiras Chicas shoal and now rests upright on a sandy seabed. Divers can explore the complete structure of the ship, which lies at depths between 14 and 21 metres. Access to this site is by boat only, located approximately 3218 metres from the shore. Conditions at the wreck are variable, with moderate currents and visibility ranging from 3 to 15 metres. Due to the potential for low visibility and strong currents, this site is recommended for intermediate divers.

Isla de Rua features a reef and wall structure located in the Atlantic waters of the Rias Baixas. The site reaches depths of 15 to 20 metres, with an average depth of 15 metres. It is suitable for beginner divers due to the absence of currents, providing a stable environment for buoyancy practice. Access is by boat only. Visibility is variable, ranging from 10 to 30 metres, and water temperatures fluctuate between 14 and 17 degrees Celsius throughout the year. Divers should be aware of potential low visibility and maintain close proximity to their guide or group. A torch is recommended to assist with navigation along the wall.

Aries Wreck is a marine dive site located in Rias Baixas, Spain. This wreck site is suitable for intermediate divers and requires boat access. The depth ranges from 9 to 21 metres, with an average depth of 14 metres. Divers should be prepared for moderate currents and visibility typically between 5 and 10 metres. Hazards at this location include low visibility, strong currents, and surf. As a wreck site, it offers a specific underwater structure for exploration within the Rias Baixas region.