Las Cuevas in San Sebastian is a diverse marine site featuring a combination of reef, wall, and cave topography. Large detached boulders create a complex underwater landscape of passages, gullies, and caves. The site reaches a maximum depth of 25 metres and is accessible only by boat. Divers should be prepared for an overhead environment within the caves and be aware of potential boat traffic in the area. Conditions are generally mild, though water temperatures fluctuate between 12C and 20C throughout the year. This site is suited for intermediate divers who are comfortable navigating rocky structures and cave systems.

Biosnar is a wall dive located in San Sebastian, Spain, offering a shallow profile between 5 and 12 metres. This site is suitable for beginner divers, as it features no current and visibility ranging from 10 to 30 metres. Access is by boat only, and divers must remain vigilant for boat traffic when surfacing. Water temperatures fluctuate between 12 and 23 degrees Celsius throughout the year. Due to the cooler water temperatures, a thick exposure suit, such as a drysuit or a 5mm wetsuit, is recommended even during the summer months. Always deploy a safety sausage upon ascent to alert nearby vessels.

Caseta is a reef dive located off the Basque Coast in Hendaye, France. The site features a reef structure spanning depths between 15 and 25 metres, making it suitable for beginner divers looking to gain experience at depth. Access is exclusively by boat, and conditions are generally manageable due to mild currents. Divers can expect visibility ranging from 5 to 10 metres. Water temperatures fluctuate throughout the year, ranging from 12C in January to 20C in September. It is recommended to check locally for boat charter availability and facility details before planning a trip, as these can change seasonally. Arriving early in the day may provide calmer surface conditions for boat entry.

El Espigón is a shore-entry reef site located in San Sebastian, Spain. This location offers shallow, calm waters that serve as a suitable environment for beginner divers and snorkellers. Water temperatures fluctuate throughout the year, ranging from 12C in January to 23C in August, requiring appropriate thermal protection. As conditions such as current and visibility can vary considerably, divers should assess the local environment before entering the water. Facilities are not guaranteed at this site, so visitors must arrive self-sufficient with all necessary equipment.

Playa de los Frailes is a sheltered dive site located near Cabo de Higuer in San Sebastian, Spain. Characterised by a combination of reef and wall topography, the site offers depths ranging from 5 to 16 metres with an average of 10 metres. Due to its protected nature and mild currents, it is well-suited for beginners, training courses, and night dives. Access to the site is by boat only. Divers should be aware of the presence of sea urchins in the area. The site provides a stable environment for underwater activities throughout the year, with water temperatures fluctuating between 12 and 22 degrees Celsius.

Bahía de los Cochinos, located off San Sebastian, Spain, offers a diverse underwater topography featuring a reef, a wall, and a wreck. Divers can explore depths between 15 and 23 metres. Access is exclusively by boat to avoid the surf break, and divers should be prepared for moderate currents and visibility ranging from 5 to 10 metres. The wreck provides an overhead environment, requiring careful buoyancy control and awareness of entanglement risks. Due to water temperatures between 12 and 20 degrees Celsius, thermal protection is necessary. Surface boat traffic is common, making the use of a delayed surface marker buoy essential for safety.

Cap Figuier offers a varied underwater landscape of reefs, walls, and caves. Divers can explore depths ranging from 17 to 37 metres, with an average depth of 27 metres. The site requires boat access and is suited for intermediate divers due to the depth and potential for currents. Visibility typically ranges between 5 and 10 metres. Marine life recorded here includes scorpionfish, wrasses, common octopus, and marbled electric rays, alongside various sea slugs, sea stars, and soft corals. Divers should maintain buoyancy control to avoid contact with sharp coral and rock formations. A dive torch is recommended for exploring the cave sections.

Banc de Chichavel is a reef located 2778 metres off the coast of Hendaye, France. The site sits at depths between 8 and 13 metres, making it suitable for beginner divers with an Open Water certification. Access is exclusively by boat. Divers should expect moderate currents that can strengthen, requiring caution and close proximity to a guide. Visibility at the site typically ranges from 5 to 10 metres. Water temperatures fluctuate seasonally between 12 and 21 degrees Celsius, necessitating appropriate thermal protection. Local facilities, including equipment rental, air fills, and showers, are available at the nearby dive shop.