Escollera de Tarragona is a shore and boat-accessible site featuring a combination of a wall and an artificial reef structure. Located 50 metres from the shore, the site offers depths ranging from 15 to 26 metres, with an average depth of 18 metres. Divers encounter mild currents, though surge and swell conditions require caution near the wall and artificial structures. Visibility varies significantly from 5 to 25 metres. Due to sharp rocks and coral, entry points should be navigated carefully. Water temperatures fluctuate between 14C and 23C throughout the year, necessitating appropriate thermal protection. The site is suitable for beginners, with typical dives lasting around 40 minutes.

Pecio La Dragonera is a marine reserve site featuring a 65-metre merchant ship wreck alongside several smaller wooden wrecks. The main vessel sits in a navigation position with a maximum depth of 24 metres, while the deck lies at 19 metres and the bridge between 14 and 16 metres. This site is suitable for beginners and wreck training. Divers regularly encounter wrasses, white seabream, two-banded seabream, castagnole, bream, and snails. Less frequent sightings include great barracuda, Cratena slugs, Turkish wrasse, Mediterranean violet aeolids, sea stars, painted combers, sea squirts, and salema porgy. Shore entry is available, with depths averaging 20 metres and visibility ranging from 5 to 15 metres.

Reserva Marina del Cavet is a shallow marine reserve located in the Costa Brava, Spain, near Sierra Beach. The site consists of Posidonia seagrass meadows interspersed with rocky reef sections. With an average depth of 6 metres and a maximum of 7 metres, it is well-suited for beginners and shallow-water dives. Divers access the site directly from the shore. Visibility typically ranges between 5 and 10 metres. Facilities available at the location include parking, toilets, showers, changing rooms, and a rinse station. Due to the presence of boat traffic, divers should remain vigilant during their 40-minute dives.

Cimodocea is a shallow marine site located on the Costa Brava, Spain, featuring a combination of reef structures and seagrass beds. With a maximum depth of 11 metres and mild currents, the site is suitable for beginners and snorkellers. Natural light remains strong throughout the water column due to the shallow profile. Visibility can shift considerably depending on the swell and season, so checking local conditions before entry is recommended. As there are no confirmed facilities on site, divers and snorkellers should ensure they have all necessary equipment and water before arrival. The site offers a practical open-water experience accessible via shore entry.

Vapor del Miracle is a 20-metre shipwreck located 300 metres offshore in Spain. This site is suitable for beginner divers and is accessed exclusively by boat. The wreck lies at depths ranging from 14 to 17 metres, with an average depth of 15 metres. Divers can expect mild currents and visibility that fluctuates between 10 and 30 metres. Water temperatures vary significantly throughout the year, ranging from 14C in the winter months to 26C in August. Due to the nature of the site, divers should be aware of potential hazards including entanglement and the risks associated with overhead environments.

El Vapor is a shallow wreck located off the coast of Spain, resting at a maximum depth of 16 metres. This site is suitable for beginners, offering a straightforward boat entry and mild currents. The vessel structure provides shelter and hard surfaces for marine life. Divers should exercise caution around sharp metal components and unstable sections, avoiding entry into enclosed areas. Visibility can vary, so checking local conditions is recommended. Bringing a torch is advisable to inspect the wreck's recesses. Species recorded around this area include various wrasses, bream, octopus, and nudibranchs, which may be found sheltering within the structure.

The Heinkel He 111 is a World War II-era aircraft wreck resting on the seafloor in Spain. This site is suitable for intermediate divers, with the wreckage extending to a maximum depth of 31 metres. Access is strictly by boat, and divers should be prepared for mild currents. Due to the nature of the site, maintain awareness of depth and exercise caution around the metal structure to avoid entanglement or sharp debris. Visibility can vary significantly, so it is recommended to check local conditions before departure. Water temperatures fluctuate between 14C and 22C throughout the year.

Playa Fosil is a reef site in the Costa Brava, Spain, defined by a stone bar measuring approximately 8 metres wide and over 120 metres long. The site features depths ranging from 17 to 19.8 metres, with an average depth of 18 metres. Access is by boat only. Divers encounter mild currents and visibility consistently around 10 metres. The water temperature fluctuates between 14C in winter and 25C in August. This site is suitable for beginners, with typical dives lasting 45 minutes. Hazards include the depth, potential for entanglement, and sharp coral. Guided tours are available through local dive shops.