Ses Lloses is a reef and wall site located in Mataro, Spain, requiring boat access. The site reaches depths of 21 to 23 metres, with an average depth of 24 metres. Divers experience mild currents and visibility ranging from 15 to 30 metres. Due to the potential for surge and swell conditions, this site is suited for advanced divers. Hazards include jellyfish, sharp coral, and sharp rocks, necessitating careful buoyancy control. Facilities available at the location include parking, toilets, showers, air fills, and boat charters. A typical dive lasts approximately 50 minutes. Divers should monitor sea conditions closely, as swell can impact depth control along the wall structure.

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.

Negre Centre in Mataro, Spain, is a marine dive site featuring a combination of reef and wall topography. The site is suitable for intermediate divers and requires boat access. Depths range from 4 to 35 metres, with an average depth of 18 metres. Conditions at the site are variable, and divers should be aware of the potential for moderate to strong currents. Water temperatures fluctuate throughout the year, ranging from 13C in February to 20C between August and October. Due to the nature of the site and the presence of currents, it is recommended for those with appropriate experience.

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.

Negre is a marine site in Mataro, Spain, featuring a combination of a shallow reef and a wall that descends to 25 metres. With an average depth of 13 metres and mild currents, the site is suitable for beginners. Visibility ranges from 10 to 30 metres, allowing for clear observation of the white gorgonians and rock fauna. Species recorded around this area include Mediterranean moray, common octopus, great barracuda, marbled electric ray, wrasses, Turkish wrasse, flatworms, Mediterranean violet aeolid, cow snail, scorpionfish, Cratena slug, flamingo tongue, torpedo ray, and sea stars. Boat access is required, and local facilities provide air fills and charter services.

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.

Planetas is a reef site located off Mataro, Spain, suitable for beginner divers. The site features a depth range of 5 to 30 metres and mild currents. Visibility is variable, ranging from 5 to 25 metres, and divers should remain close to their guide or boat when visibility is low. Water temperatures fluctuate between 13C and 21C, requiring appropriate thermal protection such as a 7mm wetsuit or drysuit for cooler months. Access to the reef is by boat only. Species recorded around this area include wrasses, scorpionfish, sea stars, and various molluscs such as cow snails and nudibranchs.

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.