El Pujol is a reef site located in Mataro, Spain, offering visibility between 20 and 30 metres. The topography extends from the shallows down to a maximum depth of 28 metres. Divers access this site exclusively by boat. Conditions are generally comfortable with mild currents, though the depth requires careful monitoring of bottom time to manage decompression risk. The site is suited for intermediate divers who can maintain buoyancy and depth control. Mediterranean fish, conger eels, moray eels, lobsters, and sunfish are recorded at this site.

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.

Barra d’en Mingo is a reef site located in Mataro, Spain, offering an underwater environment that extends from the surface to a maximum depth of 18 metres. With an average depth of 10 metres, this site is suited for intermediate divers. The topography consists of a reef structure featuring sharp rock formations, which require caution during navigation. Divers encounter mild currents, though visibility can vary significantly depending on the day. Access to this site is exclusively by boat, necessitating coordination with a local operator. Divers should monitor their depth closely while exploring the reef slope to avoid exceeding planned limits.

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.

Reyes is a reef dive located 3000 metres offshore from Mataro, Spain. The site features a reef structure situated between 21 and 26 metres, with an average depth of 25 metres. Due to the depth, this site is suited for advanced divers who can manage decompression limits and buoyancy control. Access is by boat only, and the site experiences mild currents. Visibility is variable, ranging from 6 to 30 metres. Water temperatures fluctuate significantly throughout the year, from 13C in winter to 23C in summer. Night diving is permitted at this location. Local facilities include air fills, equipment rental, and guided tours.

Los Islotes is a reef and pinnacle site located 2000 metres off the coast of Mataro, Spain. Designed for advanced divers, the site features depths between 19 and 24 metres. The topography consists of rocky terrain requiring precise buoyancy control to avoid sharp coral and rocks. Divers should be prepared for mild currents, though surge and swell can occasionally increase the challenge. Visibility is highly variable, ranging from 5 to 30 metres depending on seasonal conditions. Access is strictly by boat, and divers must remain vigilant for boat traffic when surfacing. Water temperatures fluctuate significantly throughout the year, ranging from 13C in winter to 23C in summer.

Plaer del Vell is a reef site located off Mataro, Spain, accessible exclusively by boat. The reef structure extends from the surface to a maximum depth of 24 metres, allowing divers to select a depth profile suited to their experience level. Conditions are generally mild, with currents typically remaining light. Due to the nature of the site, divers must maintain awareness of boat traffic during surface intervals and ascents. The site is suitable for beginners, though constant monitoring of depth gauges is necessary given the reef topography. Water temperatures fluctuate seasonally between 13 and 23 degrees Celsius.

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.