El Triangle is a reef site located 1000 metres offshore from Mataro, Spain. Accessible only by boat, the site features a rocky reef structure ranging from 8 to 20 metres in depth, with an average depth of 12 metres. Divers can expect mild currents and visibility typically between 10 and 25 metres. The site is suitable for beginner divers, though careful buoyancy control is required to avoid contact with sharp rocks and sea urchins found within the reef crevices. Water temperatures fluctuate seasonally from 13C in winter to 24C in late summer, necessitating appropriate thermal protection for the time of year.

Canons is a varied underwater site featuring a reef, wall, and canyon system located 1000 metres off the coast of Mataro. The topography drops from 8 to 40 metres, with an average depth of 20 metres. Divers encounter moderate currents that can strengthen within the canyon sections, requiring solid buoyancy control. Visibility typically ranges between 15 and 25 metres. The site is suitable for intermediate divers and supports night diving. Water temperatures fluctuate between 13 and 19 degrees Celsius throughout the year. Due to the significant depth and potential for strong currents, divers should monitor air supply and decompression limits closely while avoiding sharp coral and rocks.

El Negre 15-22 in Mataro, Spain, offers a varied underwater landscape featuring a reef, wall, and drop-off. The site ranges from 4 metres to 27 metres in depth, with an average depth of 15 metres. Suitable for beginners, the site experiences mild currents and visibility between 5 and 30 metres. Access is by boat only, and guided tours are available through the local dive shop to help navigate the wall and crevices. Water temperatures fluctuate throughout the year, ranging from 13C in February to 23C in August and September. Divers should plan their thermal protection according to the seasonal temperature variations.

El Gruñon is a reef site located off Mataro, Spain, featuring depths between 14 and 23 metres. Accessible only by boat, the site offers visibility ranging from 5 to 25 metres. The topography consists of rocky reef structures and meadows of Posidonia oceanica seagrass. Conditions are generally manageable for beginner divers due to mild currents. Divers should exercise caution regarding buoyancy control, as the reef contains sharp and uneven rock formations. Water temperatures fluctuate significantly throughout the year, ranging from 13C in February to 23C in August and September, necessitating appropriate thermal protection for the season.

Els Canals is a reef and canyon site located off Mataro, Spain. The topography features rocky walls and sandy patches, with depths ranging from 12 to 18 metres. Visibility is generally good, between 15 and 30 metres, and currents remain mild, making it suitable for beginner divers. Access is by boat only. Divers should be aware of boat traffic when surfacing and avoid contact with sharp rock formations. Species recorded around this area include common octopus, Mediterranean moray, wrasses, scorpionfish, various nudibranchs, and sea stars. Air fills, equipment rental, and guided tours are available locally to support your dive.

El Trompo is a reef site located 1000 metres offshore from Mataro, Spain. The reef structure ranges from 5 to 20 metres in depth, with an average of 12 metres. Visibility typically spans 10 to 25 metres. The site is accessible only by boat and is suitable for beginners, though divers should remain aware of boat traffic and potential current changes. The reef features Posidonia seagrass meadows which provide habitat for various reef fish and invertebrates. Species recorded around this area include common octopus, Mediterranean moray, wrasses, scorpionfish, and various sea stars. Night diving is permitted at this location. Guided tours and equipment rental are available through local facilities.

El Templo is a deep reef site located off the coast of Mataro, Spain. The reef structure extends from 25 to 35 metres, requiring advanced diving skills and careful gas management. Divers should maintain solid buoyancy control while navigating the rocky substrate. Visibility varies significantly, ranging from 6 to 21 metres depending on conditions. Water temperatures fluctuate between 13 and 20 degrees Celsius throughout the year, making appropriate thermal protection essential. Access to this site is strictly by boat, and divers must monitor bottom time and decompression requirements closely due to the significant depth. The site is best suited for experienced divers comfortable with deep-water environments.

Xori B is a boat-access reef located 1000 metres off the coast of Mataro, Spain. The site features a reef structure ranging from 5 to 18 metres in depth, with an average depth of 12 metres. Conditions are generally mild, with visibility typically between 5 and 15 metres. The site is suitable for beginner divers, though caution is required around the reef structure due to sharp coral and rocks. Divers should avoid contact with the sea floor and reef surfaces to prevent injury. Boat charters and guided tours are available through local dive shops to facilitate access to the site.