La Avioneta is a wreck dive located off Mataro, Spain, resting at depths reaching 37 metres. This site is strictly for advanced divers due to the significant depth and the requirement for precise buoyancy control. Access is exclusively by boat, and divers should be prepared for mild currents. Visibility at the site varies considerably, so checking local conditions before departure is essential. Water temperatures fluctuate between 13C and 20C throughout the year, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Divers must maintain strict depth monitoring and careful gas management plans throughout the dive to account for the depth of the wreck.

La Virgen is a marine dive site located off the coast of Mataro, Spain. The site features a consistent depth of approximately 10 metres. Water temperatures at this location vary throughout the year, ranging from a low of 13C in February to a high of 26C in August. Given the shallow and stable depth, the site is accessible for divers of various experience levels. Divers should be prepared for seasonal temperature fluctuations when planning their visits to this Mediterranean location.

Platja de les Roques Blanques in Mataro is a shore-entry reef site featuring white rock formations that reflect sunlight across the seabed. The topography consists of a mix of sandy bottoms and rocky areas, suitable for beginners. Conditions are generally mild, though divers should be aware of potential surf and the presence of jellyfish. Water temperatures fluctuate between 13C and 26C throughout the year. Species recorded around this area include Mediterranean moray, common octopus, great barracuda, various wrasses, cow snails, flatworms, scorpionfish, and sea stars. Facilities at the site include parking, toilets, showers, a rinse station, a cafe, and equipment rental.

Cala del Moro is a small, rocky cove situated between Arenys and Canet, north of Mataro. This site is suitable for beginners and offers shore access for snorkelling. Water temperatures fluctuate throughout the year, ranging from a low of 13C in February to a high of 26C in August. The site provides a straightforward entry point for those looking to explore the coastal environment. Due to its rocky topography, visitors should exercise caution when entering and exiting the water. The location is well-regarded for its accessibility and is a practical choice for those seeking a shore-based snorkelling experience in the region.

La Hispaniola is a deep wall dive located off Mataro, Spain. The site features a vertical rock face that drops from 30 to 45 metres, making it suitable only for expert divers. Conditions are variable, with visibility ranging between 10 and 30 metres and currents that can shift during the dive. Due to the significant depth, divers must maintain strict monitoring of gas reserves and decompression requirements. Access is exclusively by boat. Divers should carry a surface marker buoy and deploy it prior to ascent, particularly in areas with boat traffic. A redundant air source and a dive computer capable of managing deep-dive profiles are strongly advised for this technical environment.

Roca Grossa in Mataro is a granite reef site featuring large rock formations that extend into the sea. These structures create natural pools and crevices suitable for snorkeling. The site is accessible from the shore and is well-suited for beginners. Depths range from 2 to 14 metres, with an average depth of 7 metres. Conditions are generally mild, though visibility varies between 5 and 15 metres. Water temperatures fluctuate throughout the year, ranging from a low of 13C in February to a high of 26C in August.

Los Cubos is an artificial wreck site located off Mataro, Spain. The structure sits at depths reaching 25 metres, requiring advanced diving skills. Access is strictly by boat, and divers must remain vigilant regarding active boat traffic when surfacing. The site features mild currents, though visibility can shift significantly depending on local conditions. Divers should maintain precise buoyancy control to avoid contact with the artificial structure. Due to water temperatures ranging from 13 to 23 degrees Celsius, appropriate thermal protection is recommended, particularly during the cooler months. The wreck environment demands careful monitoring of depth gauges throughout the dive.

Montseny is a reef site located off Mataro, Spain, accessible only by boat. The topography drops from the surface to a maximum depth of 27 metres. Divers encounter a mild current, making navigation manageable for those with intermediate experience. The site features a complex reef structure with crevices and sharp rock edges that require careful manoeuvring. Due to the presence of heavy boat traffic in the area, the use of a surface marker buoy is essential for all ascents. Water temperatures fluctuate between 13C and 23C throughout the year, necessitating appropriate thermal protection based on the season.