Las Conchas is a rocky reef located off Mataro, Spain, accessible only by boat. The site features a reef structure reaching depths between 14 and 23 metres, requiring careful monitoring of depth and air consumption. Divers encounter patches of Posidonia seagrass and rocky formations throughout the area. Conditions include mild currents, though visibility can vary significantly between visits. The site is suitable for beginners, but good buoyancy control is necessary to avoid sharp rock edges. Divers should exercise caution when re-entering the boat due to the rocky terrain. It is recommended to check local conditions and visibility with boat operators before planning a dive.

La Pedra Den Cinto is a reef and wall dive site located off the coast of Mataro, Spain. The site features a consistent depth range between 9 and 10 metres, making it suitable for beginner divers. Access to the site is by boat, and underwater conditions typically involve mild currents. Divers can expect a standard dive duration of approximately 40 minutes. Water temperatures fluctuate throughout the year, ranging from a low of 13C in February to a high of 26C in August. As a shallow reef and wall formation, it offers a straightforward environment for those developing their diving skills in the Mediterranean.

La Calzada is an offshore rock barrier located near Mataro, Spain. This reef site features depths ranging from 15 to 20 metres, making it suitable for intermediate snorkelers and divers. Access to the site requires a boat. Water temperatures fluctuate throughout the year, ranging from 13C in February to 26C in August. Facilities available in the area include parking, showers, changing rooms, air fills, equipment rental, and a dive shop. Due to the moderate currents and depth, this site is best suited for those with previous experience in open water environments.

La Matella is a combined natural and artificial reef located in Mataro, Spain. The site features a gentle depth range of 2 to 12 metres, with an average depth of 3 metres, making it suitable for beginner divers. Divers can expect mild currents and visibility ranging from 5 to 20 metres. Entry is via the shore, and typical dives last around 30 minutes. Water temperatures fluctuate significantly throughout the year, ranging from 13 degrees Celsius in winter to 26 degrees Celsius in summer. Divers should select appropriate thermal protection based on the season and verify local access and parking conditions before arrival.

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.

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.

Barreta D’en Serra is a reef dive located off Mataro, Spain, suitable for beginner divers. The site features a rocky structure reaching depths between 18 and 20 metres, with an average depth of 19 metres. Access is by boat, and divers typically experience mild currents. Visibility at the site can vary, so checking local reports before departure is recommended. Water temperatures fluctuate significantly throughout the year, ranging from 13C in winter to 24C in late summer. Species recorded around this area include Mediterranean moray, common octopus, marbled electric ray, great barracuda, various wrasses, scorpionfish, and sea stars, alongside several nudibranch and flatworm species.

El Circus is a reef site located off Mataro, Spain, accessible exclusively by boat. The site features a reef structure reaching depths of up to 18 metres, characterised by mild currents. It is well-suited for beginner divers looking to build confidence in a manageable environment. Divers should be aware of sharp rock formations throughout the reef and exercise caution regarding boat traffic during surface intervals and ascents. Water temperatures fluctuate seasonally, ranging from 13C in February to 24C in August and September. Due to the nature of the reef, wearing gloves is recommended to protect against contact with the sharp rock.