Praia de Fuzelhas, located near the Siza Vieira tea house in Porto, offers a snorkelling experience defined by a labyrinth of rock formations. The site features deep gullies between these rocks, which provide shelter for marine life and support vibrant algae colonies. Snorkelling is conducted from the shore with depths typically ranging from 1 to 5 metres, averaging 3 metres. Conditions are generally suitable for beginners, though surf is a known hazard. Water temperatures are cool, ranging from 14C to 17C throughout the year. Facilities available at the site include parking, toilets, showers, and a cafe.

Pelo Negro is a rocky reef located 1500 metres off the coast of Porto, Portugal. This site features a depth range of 8 to 20 metres, with an average depth of 15 metres. Divers must access the reef by boat. Conditions include mild but variable currents and visibility ranging from 5 to 30 metres. The water temperature remains cool, between 14 and 16 degrees Celsius throughout the year, necessitating appropriate thermal protection. Due to active boat traffic on the surface, divers should use a surface marker buoy during ascents. The reef topography consists of sharp, rocky structures requiring careful buoyancy control. This site is suitable for intermediate divers.

The Veronese is a shallow wreck and artificial reef located off the coast of Porto, Portugal. Resting at a consistent depth of 10 metres, this site is accessible via shore entry and is suitable for beginners. Divers can expect mild currents and visibility ranging from 5 to 10 metres. Due to the water temperature, which fluctuates between 14 and 17 degrees Celsius, a 5mm or 7mm wetsuit is recommended. Divers should exercise caution regarding potential entanglement risks within the wreck structure and be mindful of sharp rock and coral features. Typical bottom times are approximately 50 minutes.

Vila do Porto in Portugal offers a diverse underwater environment featuring a wreck, natural reef, and artificial reef structures. Located 500 metres from the shore, the site sits at a depth of 8 to 12 metres, making it suitable for beginner divers. Divers experience mild currents and visibility ranging from 5 to 10 metres. Water temperatures fluctuate between 14 and 17 degrees Celsius throughout the year. Access is exclusively by boat to avoid surf at the entry point. The site supports night diving, with typical dives lasting 40 minutes. Divers should remain alert for boat traffic during ascents and carry a cutting tool due to the risk of entanglement.

Olo is a reef site located along the Costa Verde coastline north of Porto. The reef structure sits at depths between 10 and 20 metres, with an average depth of 15 metres. Conditions are characterised by mild currents and visibility ranging from 5 to 10 metres. Water temperatures remain between 14 and 16 degrees Celsius throughout the year, requiring a thick wetsuit. Access to this site is by boat only. Divers should remain aware of boat traffic at the surface and use a surface marker buoy. The site is suitable for beginner divers, though surf conditions can impact boat operations.

Porto de Leixões is a shallow reef site located in Porto, Portugal, offering depths between 2 and 7 metres with an average of 5 metres. This site is suitable for beginners, featuring mild currents and accessible entry points from both shore and boat. Divers should be aware of variable visibility, surge, and active boat traffic in the harbour area. Water temperatures range from 14 to 17 degrees Celsius, necessitating appropriate thermal protection. When entering from the shore, exercise caution regarding surf and shore break, and use protective footwear to navigate the shallow rocky areas. Always deploy a delayed surface marker buoy before ascending due to local vessel movements.

Charneca is a wreck dive located 1500 metres off the coast north of Porto. The site sits at an average depth of 14 metres, with a maximum depth of 15 metres. Access is by boat only. Divers should expect visibility of approximately 5 metres and mild currents, though conditions can strengthen. The wreck presents hazards including entanglement risks and overhead environments; proper training is required for any penetration. Due to water temperatures ranging between 14 and 17 degrees Celsius, a minimum 5mm wetsuit is recommended. Typical dive duration is 30 minutes. Always check locally for current boat operator availability and site conditions before planning a dive.

The Jakob Maersk is a large shipwreck located off the coast of Porto, Portugal. Resting at depths between 12 and 15 metres, the site is accessible exclusively by boat. Divers encounter mild currents and visibility typically limited to 5 metres, making a dive torch essential for examining the structure's details. Due to the nature of the wreck, there is a risk of entanglement, requiring good buoyancy control. Surface conditions necessitate caution due to boat traffic, and divers should deploy a surface marker buoy before ascending. This site is suited for intermediate divers who are comfortable with low-visibility conditions and wreck navigation.