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 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.

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.

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 Xonimira is a reef site located in Mataro, Spain, suitable for beginner divers. The site features a reef structure with depths ranging from 9 to 13 metres, averaging 11 metres. Divers experience mild currents and visibility that varies significantly between 5 and 30 metres. Access is strictly by boat, and divers must remain vigilant for boat traffic during ascents and descents. The reef consists of sharp rock, requiring careful buoyancy control to avoid contact. Species recorded around this area include wrasses, scorpionfish, sea stars, common octopus, and Mediterranean moray, alongside various nudibranchs and flatworms.

Alguer de Mataró is a vast meadow of Posidonia oceanica seagrass located 1600 metres off the coast of Mataro, Spain. This site is accessible only by boat and is suitable for intermediate divers and snorkellers. Depths range from 5 to 20 metres, with an average of 10 metres. Visibility varies between 10 and 30 metres, and currents are generally mild. Species recorded around this area include Mediterranean moray, common octopus, great barracuda, marbled electric ray, various wrasses, scorpionfish, and sea stars. Due to the location, divers and snorkellers should remain aware of boat traffic in the area. Facilities including equipment rental and air fills are available nearby.

Pins Mar is a shallow reef dive located in Mataro, Spain, suitable for beginner divers. The site features a depth range of 3 to 8 metres, with an average depth of 6 metres. Divers access the reef via a shore entry, where caution is required due to potential surge and the presence of sharp rocks and coral in the shallows. Visibility at the site typically ranges from 5 to 15 metres, and currents are generally mild. Facilities available at the location include parking, toilets, showers, changing rooms, and a rinse station. A typical dive at this site lasts approximately 45 minutes.

Las Santas is an artificial reef located off Mataro, Spain, designed to provide a accessible environment for divers. The site sits at a maximum depth of 10 metres, making it suitable for beginners and allowing for extended bottom times. Visibility at the site fluctuates between 5 and 30 metres, while currents remain mild. Access is exclusively by boat. Divers should be aware of active boat traffic in the area and are advised to deploy a surface marker buoy before ascending. Protective gear is recommended to avoid contact with sharp edges on the structure, and divers should check for jellyfish before entering the water.