The St. Sunniva is a wreck located off the coast of Hendaye, France, resting at depths between 20 and 40 metres. This site is reserved for advanced divers due to the depth and the presence of moderate to strong currents. Visibility is highly variable, requiring careful planning and the use of a surface marker buoy for the ascent. Boat access is mandatory for this site. Water temperatures are cold, ranging from 12C to 19C throughout the year. Species recorded around this area include the tricolor doris, cow snail, striped red mullet, and various sea squirts.

Aroca Tiquia is a technical dive site on the Basque Coast featuring a combination of reef and cave systems. Reaching depths between 20 and 40 metres, the site requires advanced certification and cave training. Divers must manage moderate currents and an overhead environment, with visibility typically ranging from 5 to 10 metres. Due to these conditions, carrying primary and backup torches is recommended. Water temperatures fluctuate between 12C and 18C, necessitating appropriate thermal protection. Boat access is required to reach the site, and divers should monitor gas supplies and decompression limits closely. Species recorded around this area include wrasses, crabs, octopus, cuttlefish, and various sea slugs.

Illarguita is a reef site located off the coast of Hendaye, France. The reef structure extends between 27 and 40 metres in depth, requiring boat access. Divers encounter mild currents and visibility typically ranging from 5 to 10 metres, necessitating good buoyancy control. Water temperatures fluctuate between 12C and 19C throughout the year, making a 5mm wetsuit advisable during cooler months. While the site is suitable for beginners, the deeper sections of the reef are better suited for experienced divers. Species recorded around this area include wrasses, common octopus, marbled electric rays, various sea slugs, and crustaceans.

Cambo Banco is a reef and wall site located off the Atlantic Coast of France near Hendaye. The topography features a vertical wall that descends from 20 to 36 metres, making it suitable for intermediate divers. Visibility at the site ranges from 10 to 30 metres, allowing for clear observation of the reef structure. Currents are generally mild, assisting with buoyancy control during the dive. Water temperatures fluctuate between 12 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection. Boat access is required to reach this location, and the site is accessible for night diving.

Grotte à Balou is a reef and cave site located off the coast of Hendaye, France. Suitable for beginners, the site features depths ranging from 2 to 18 metres with an average depth of 9 metres. Divers experience mild currents and visibility typically between 10 and 15 metres. Access is strictly by boat, and divers must remain vigilant regarding boat traffic. It is essential to use a surface marker buoy and stay close to the dive boat during ascents to ensure visibility to passing vessels. Typical dives last approximately 50 minutes. Parking is available at the launch point for those arriving by vehicle.

Plage d'Erromardie is a wide bay on the Basque Coast featuring a mix of sand and pebbles. The site is defined by extensive rocky shelves that are exposed at low tide, with the most suitable areas for snorkelling located along the northern and southern rocky edges of the beach. Divers and snorkellers can expect depths ranging from 2 to 10 metres. Access is via the shore, though conditions vary with mild currents and potential surf. Hazards include rip currents, strong currents, and low visibility. Facilities at the site include parking, toilets, showers, a cafe, first aid, and a dive shop.

Plage de Lafitenia is a rocky reef site located in Hendaye, France. Primarily recognised for its surf, the area features rocky outcrops that provide opportunities for snorkelling during calm sea conditions. Divers and snorkellers should be aware of strong currents and surf, which necessitate careful monitoring of sea states. Water temperatures fluctuate between 12C and 23C throughout the year, making the use of a wetsuit recommended for comfort. Access to the site is via the shore, with parking and showers available for visitors. Due to the prevailing conditions, this site is best suited for intermediate-level participants.

Digue d'Artha is an artificial reef located in Hendaye, France. This site offers a manageable experience for beginners, with depths ranging from 10 to 15 metres and an average depth of 12 metres. Divers can access the site via shore or boat, encountering mild currents and visibility between 5 and 10 metres. The structure features rocky surfaces and artificial substrate. Species recorded around this area include wrasses, crabs, common octopus, marbled electric rays, and various sea slugs. Due to sharp surfaces on the reef, protective footwear and careful buoyancy control are recommended. A 5mm wetsuit is advised year-round to accommodate water temperatures ranging from 12C to 20C.